Repair Samsung Microwave / Wall Oven Combo C-A2 Error Code

[@Chaz136]

Finally, someone has at least shown the inside where the controller boards are. Great job, by the way.

[@danabateman8019]

Hello Mr Woods, a little update on my issue with the C A2 error. I had ordered the front board fortunately for me, I was notified that it was out of stock and would take three to four weeks to receive it. I then went and removed the complete oven, removed the rear panel and checked the back fan. I found it to start running and after about 10 seconds it would stop. so I ordered just the fan and not the sensor. Anyone having this issue with the fan, if the C A2 error is coming on, that means the sensor is actually working and you can save yourself $55 by just installing the old sensor on the new fan. I installed the fan yesterday and it's working like new. Thanks again for taking the time to evaluate this issue and instructors on the simple repair, you've saved me probably a $1000 and a lot of time without the oven. If interested I would like to buy your service manual for this oven if you still have that. Dana Bateman

[@Tomrocksu2]

Dana, I am SOOO glad you got yours up and running again. I would be more than happy to send you a copy of the repair manual at no charge. Please give me your email and I will send it to you.

[@BigDogRoy]

Reading the comments I realized that this is a big issue. They definitely should have a recall on this. I had the same issue and service tech did the same as you described.

[@Tomrocksu2]

Glad you got it back up and running. They sent a tech to my house to replace the entire wireing harness after I got it fixed, and it never worked again. They ended up paying me and I bought the LG version, which has NEVER had a problem!!

[@Madeindurm]

This was very helpful!! I am a technician and this was the perfect reference vid. Thanks bud!

[@Tomrocksu2]

Your welcom sir!!

[@patrickduyck1564]

I can't thank you enough for this VERY VERY helpful video ... EXACTLY the problem with a customer's oven!

[@Tomrocksu2]

Glad I could help!!!

[@jennifermeyer7489]

I have the same one and just orders a new blower for my unit. $20k in Samsung appliances for a newly built house every single one of them have had to be replaced or repaired. I’m still waiting 2+ years on a replacement door for my fridge from a year ago! Thank You! This will help so much!

[@Tomrocksu2]

Jennifer, I HIGHLY recommend opening up the top of your oven and checking the two connectors AND the wires along the path of those two connectors. You may need nothing more than to repair those two items. Let me know if I can help.

[@viktorartemenko]

@@Tomrocksu2 Hey Tommy, first of all, huge thanks for the video. You're a lifesaver! I got the entire set for a new build 3 years ago and only now got to install the oven, cooktop and hood: unpacked my oven, installed and was about to run it for the first time! - same error code exactly! My question to you: do you think it might have the same relay/connector issue just from running install test from the setup menu? I'm beyond devastated, not even having the chance to use it once. Obviously its out of warranty by now..

[@Tomrocksu2]

@@viktorartemenko . Hard for me to say Victor. I guess the only real way to know that would be if you open up the top of the oven and check out the two wires I showed you in the video. Opening up the top is not hard at all. Let me know what you find out please.

[@viktorartemenko]

@@Tomrocksu2 Will do. Can you give me a part # for the relay? I prefer to open the oven only once, if possible:)

[@Tomrocksu2]

@@viktorartemenko I did not replace the relay. One of the wires I showed in the video had burned a few inches from the connector where it attaches to the board, and the end of the connector below that wire had a melted plastic housing, but I did not replace it. Samsung knows these wires have an overheating issue, and I believe they have a replacement wiring harness to fix that. I just spliced the burned wire back together and it solved my problem. I only heard about the wiring harness deal after I had made my fix, so the next time it happens, I will be looking to get that harness. Check with Samsung to see if they can sell you the harness. You might also check with Parts Dr. or some of the other appliance parts supply places.

[@andrewgoddard5408]

THANK YOU!!!! I had the same problem and had already replaced the cooling fan between the oven and the microwave, but no improvement. I should have looked on KZbin first! You just saved me a whole lot of money, as I found the burnt wire and will replace the relay and make a new connection.

[@Tomrocksu2]

Andrew, I'm SOOO happy you got your problem solved. You may try to just fix the wire and see if it begins to work, without replacing the relay, unless you see signs the relay is damaged. You may have seen a recent post from another viewer xtrodinarypowers1285 that mentioned a wiring harness he purchased that was a re-wired harness that dealt with actually fixing this issue from happeneing again, just in case you have to go thru this again. CHEERS!!

[@andrewgoddard5408]

@@Tomrocksu2 I will replace the relay as the upper terminal is badly burnt. I doubt I would be able to get a good connection.

[@andrewgoddard5408]

I ordered a new relay, but decided to clean up the contact on the existing one and solder the tiny wire directly to it as a temporary fix at least. Got a very good connection and the problem was solved. I assume that the wire gauge chosen by Samsung was too small to carry the current, which caused it to overheat and fail. I don't think I want to buy a new wiring harness to fix a Samsung mistake, I would sooner put in a heavier wire myself. Samsung should offer the harness free to anyone who has this problem since it looks like a design fault Got the oven back in time for Christmas day cooking!

[@Tomrocksu2]

@andrewgoddard5408 I agree Samsuck should have notified all owners of the issue and replaced that wiring harness on that fire hazard of an oven, but they just keep punting down the road. I'm glad I got rid of mine and replaced it with one from LG that is almost the exact same oven, albeit with no problems after 2 years with it.

[@jerrysanders5444]

Thank you sir. I just got this error and your video gave me great insight. I did just order a fan and sensor. Relatively cheap since I will be pulling the oven out anyway. But will definitely check that connection. When we bought the house all Samsung appliances have been repaired or replaced. All were changed by previous owners 5 years ago. Will never buy another Samsung product

[@Tomrocksu2]

Jerry I would check that connection first before replacing the blower and sensor. If its burnt you may can repair it and get it running again and return the blower and sensor. Remember there are 2 blowers and sensors. One up top where all the boards are and one in the back between the microwave and oven. Let me know how it comes out please!!!

[@jerrysanders5444]

Turned out to be the oven fan. I replaced the fan and sensor for $200. Everything else looked fine. Took me about an hour and 40 screws

[@Tomrocksu2]

@@jerrysanders5444 Thats great news!!! I hope you scoped out the connector and wire I mentioned while you were in there, just to make sure you don't have any upcoming issues with that.

[@goodysgoodies6372]

Thank you so much, Tommy. I just got similar error code on my Samsung double wall oven- it’s only about 2 years old but out of warranty. What a piece of junk- if I can find some friends to help me pull it out, I’m sure I’ll find some burnt wires up top!

[@Tomrocksu2]

I'll be glad to answer any questions you have once you get it opened up.

[@marc-antoinelemay5233]

Our 2 year old unit has the same problem. Thanks to you, I pulled the oven a few inches and look at the connector thru the vent slot on the cover. Sure enough that plug is burnt. I’ll have to get Samsung here and hopefully the tech will know what he’s doing. Can’t wait to find out what the root cause is !! I have read thru this post but haven’t checked your Redit. Good work

[@Tomrocksu2]

Marc, if your unit is out of warranty, and if you posses just a little wiring knowledge, fixing those ends is a breeze and more than likely will solve your problem. Samsung has not (and will not) say what the root cause is. Based on how those ends burn, my guess there is simply too many amps being pulled thru them to handle the current. Eventually it will burn the relay that end plugs onto and you will have to repace that small board in front. Thats what happened to me the first time.

[@marc-antoinelemay5233]

@@Tomrocksu2 Hi Tommy, Well, the Certified tech came back for the second time. This time he had the main board and 'a' wire harness. The harness wasn't the right one and he said he had to order it. I told him he could simply use terminals just like you did . He didn't have any but luckily I did. He replaced the main board (which I think wasn't damaged) and plugged everything back. Works great... My wire was completed burnt and I could just pull the old wire out of the connector. I didn't look at the wire size but it does look very small. The really is a DYSF-12V-P1 (Rated to 16A / 250VAC). The old board part number was DE41-00450A (information only if anyone may need it) I would be curious to start the oven and measure how much current goes thru that wire. I bet the wire is undersized. And also see where the wire comes from and to what component it goes to. As you say, if anyone has this issue and the oven is out of warranty, they should the fix themselves if they have any wiring skills.

[@Tomrocksu2]

@@marc-antoinelemay5233 Glad I could help you out, and also glad your oven is back working. Your fortunate he did not try to replace the entire wireining harness (if in fact it was the one for the whole oven). If you go back and read all my posts, you will see that is exactly what they ended up doing to mine, but after doing so, it never worked again and they could not fiure out how to fix it. They deemed it "unrepairable" and ended up refunding me around $1900.00 (paid $3000.00 3 years prior to all this) and I turned around and bought an LG unit whose features and set up are almost identical to the Samsuck unit, AND IT WORKS GREAT!!!!!

[@forword3719]

@@marc-antoinelemay5233 Hi, Marc, thank for sharing. So, the Samsung Tech just replace the main board and harness, and it works well, right? Could you please share the mail board parts number? What is DYSF-12-P1 for? I only found DE41-00450A board, but not DYSF-12-P1, where did you get it? Thanks again!

[@gvpup1]

Mr. Woods, thanks to your videoclip we were able to locate and fix the reason for our C-A2 error code quickly. We had exactly the same issue shown in your video. Thank you so much! Jenny and Gerrit

[@Tomrocksu2]

And THATS why I made the video. SOOOOO glad this helped you out. CHEERS!!!!

[@lavender5781]

Thank you Tom, same error code, same exact issue with burned connector. I cut the wire back and crimped on a new connector, all working…for now ha samsung nq70m7770dg/aa

[@lavender5781]

Best part by far is removing the 300lb oven to a couple of chairs to work on it

[@Tomrocksu2]

Glad this video helped you out Lavendar. Yea, the first thing I had to do was figure out how to mainipulate it out of the hole. Once I found a small roll around tool box I had that was about the same height, it made life SOOO much easier!!!!

[@Joe-ni6uf]

Had the same error code. I had already replaced the main board, and the crispy wire in a previous repair. This time the error C-A2 error was the result of the LOWER vent fan rotating too slow because of built-up grease. Part number DG31-00027A. This fan can be found on the back of the unit. Its the same part you see in this video, on the top of the unit. I also purchased the hall sensor (DG32-00016A) for the fan, but returned it since the fan unit was at fault.

[@Tomrocksu2]

Thanks for the update Joe!!! Perhaps this will help others on here.

[@xtrodinarypowers1285]

Thank you for this. My harness was fried and so was the control board. Just wanted to let you know that the harness I ordered, Samsung and repaired the issue. They have rewired that part. They have pulled the power from the other side of the microwave on that harness.

[@Tomrocksu2]

Sounds like Samsuck finnaly realized they had a fire hazard on their hands and FINALLY changed it. Thanks for letting us know bud. Glad to help!!!

[@Tomrocksu2]

Just curious, did they supply those parts for free? I'm sure our other readeras would want to know. Thanks!!

[@xtrodinarypowers1285]

Based on the length of time people spent with Samsung, I didn’t really bother to even call knowing it was out of warranty. I got the parts from ptsdoctor. The controller board was $130 and the updated harness was $280. I can acknowledge a minor change to the board also where a tracer on the board burned. They have cut that out on the new board. If anyone is interested in pictures of the damage or new harness, let me know.

[@Tomrocksu2]

This is REALLY good info@@xtrodinarypowers1285 . Im sure those that still own this unit, and are most likely to incur this problem in the future, will find it comforting to know there are FINALLY parts available now, that address the actual problem and hopefully take care of this issue for good. Cheers buddy!!!!

[@CupCake-i9n]

Excellent video my samsung failed exactly the same. Easy fix

[@Tomrocksu2]

Glad it helped!!!

[@mariasmith4532]

Thank you! Save me money.. I just got mine last year and it sucks that have problems

[@mariasmith4532]

Thank you.. is a shame that we got something so expensive and doesn’t work!

[@davidwoodruff2275]

Hi Tommy, The same overheating issue on our Oven combo happened in October 2021. The unit was just short of 4 yrs old. Samsung refused to repair the oven under warranty and I was quoted a minimum of $650 in parts and $300 in labor to fix the oven. We decided to junk the unit because it is a fire risk and now have to wait 5 months for a new Bosch oven. I am diligently watching for a class-action lawsuit for poor workmanship.

[@Tomrocksu2]

David, I settled with Samsuk for $1800.00 but it took a lot of effort to get that done. We ended up getting an LG Oven/Micro combo. I chose to have the delivery guys junk the Samsuk unit.

[@Tomrocksu2]

UPDATE: I have been on the phone with Samsung numerous times in the last few days trying to get them to realize that there is a major problem going on with this oven that needs to be addressed ASAP, before someone's house burns down. They have agreed to send another "tech" to my house (free of charge) to try and diagnose what is causing this problem and see if they can come up with a solution. I'm really not sure why they cant address this at their manufacturing plant, or put it through R&D to come up with a solution, but whatever. I'll keep this post updated as I learn more.

[@jasonInBTR]

Any update from the dispatched tech?

[@Tomrocksu2]

@@jasonInBTR Samsung sent their tech to my house on Tuesday. Rememeber that my oven is working right now. He struggled to find the correct screws to take out to get the top off. I asked him if he had worked on many of these ovens and he said know. I knew then that Samsung sent someone who could not actually "diagnose" the oven, especially when he did not have a meter of any kind. He came in with several boxes of parts and thats when I told him "Ive already replaced all the parts you just came in with, 3 months ago. I started to show him where the actual problem was showing up. The red heat shrink sleeve I put on my splice 3 months ago was already browning in color. He took a few pictures and after talking a bit more with him, he said the techs out in the field struggle to get issues they see over and over again, bumped up to engineering. Its only after it goes on for several years that Samsung may actually redisign a part to correct the problem, or issue a recall. He said Samsung now has a recall on the ice makers that freeze up (as he is standing right next to my Samsung fridge). I said "you mean like the fridge you are standing right next too?". He said "why yes". It was pretty funny. I told him I have 2 of those and both have the same ice maker. ANYWAY..in the end, he said he was going to order all new parts for the entire oven, including the wiring harness, and replace it all. I asked if he knew if any of these parts or harness were updated in any way and he said he did not know. I said " I find it interesting the Samsung would be willing to just keep throwing parts at this issue instead of finding to root cause, which is probably somethimg very simple. He said he was just trying to help me out, and I agreed. He's ordered the parts and said he should be back sometime next week to install, which he said will take all day. I'll update when that happens.

[@Tomrocksu2]

@@jasonInBTR Samsung came today. He replaced the entire wiring harness nd the 2 main boards, 1 of which I had just replaced. Prior to him arriving I removed the oven and its top and saw that my splice on the wire from the microwave door had grown darker in color, meaning some pretty high temps. I ran the microwave for about 5 minutes and used an instant read thermomter to test the temp. It rose to 130 degrees, which is obviously way to high. After his repair, I told him I wanted to test the temp on the new harness, after expaling what I had done prior to him arriving. The temp stayed at 75 degrees. Needless to say I am happy but still a bit skeptical. Time will tell.

[@jasonInBTR]

@@Tomrocksu2 - I replaced that rear fan and the FM_WALL_MAIN PCB and all has been good for about a week. Crossing fingers but budgeting for a new oven. Was the harness noticeably different particularly on that relay?

[@Tomrocksu2]

@@jasonInBTR to be honest, I never saw my "original" harness. When the Techs came a couple of years ago to replace all of the parts the first time, which is also when they discovered the burnt end on the relay like you experienced, they ended up putting two individual plastic connectors on. so when I opened it up after that repair a year or so later Oh, I thought that those wires had always had separate connectors. But after my repair and going back and looking at your pictures, I realized that there was only one connector originally with all of those wires coming into that dual Spade relay. So that tells me that mine was a botched repair from the get-go. They just wanted to get in and get out without having to replace the entire wiring harness like this guy did today. And by the way that guy was definitely on all of us who owns Samsung appliances side. We had a lengthy discussion about all of the issues that Samsungs appliances are facing right now, especially the ice makers in there Sam junk refrigerators

[@Tomrocksu2]

If you find yourself coming to this video and post, would you please post your issue, pictures and any resolution that was made, so we can show Samsung that this problem is VERY widespread? Samsung needs to step up to the plate, admit there is a fire hazard with this issue, and resolve it once and for all so we can continue to use our ovens for years to come.

[@hariramakrishnagurram7649]

@Tomrocku2 Thank you for the detailed video here. I’m facing same issue and the Samsung technician came in just to say it needs wiring harness and fan to be replaced and then figure out what else could be wrong. He added it could be the board too. But first the fan and wiring reds to be replaced. I rejected the repair and paid $140 just for the visit. He dint even touched the oven at all. What are my option now? Can I check and repair myself? I have a bit of electrical background but not to a point to repair appliances. I’m also interested to see where did you get the service manual?

[@Tomrocksu2]

email me at [e-mail] and I will respond by sending you the service manual at no charge. Honestly, it was of little use to me. If you know how to get into the top of the oven, look at the board on the left that I show in the video. Find the two wires I show, then look at the connectors to see if they are burnt, then also look further down the line on those wires to see if either have burned thru, or show signs of being extremely hot. This has been the culprit for most, but not all, who have responded. The oven also has 2 fans, one on the top, which you can see, and one midways down on the back of the overn that you will have to take off the back cover to see. Some, but very few on here, have had to change at least one of those blowers and hall sensors.

[@Tomrocksu2]

Samsung sent their tech to my house on Tuesday. Rememeber that my oven is working right now. He struggled to find the correct screws to take out to get the top off. I asked him if he had worked on many of these ovens and he said know. I knew then that Samsung sent someone who could not actually "diagnose" the oven, especially when he did not have a meter of any kind. He came in with several boxes of parts and thats when I told him "Ive already replaced all the parts you just came in with, 3 months ago. I started to show him where the actual problem was showing up. The red heat shrink sleeve I put on my splice 3 months ago was already browning in color. He took a few pictures and after talking a bit more with him, he said the techs out in the field struggle to get issues they see over and over again, bumped up to engineering. Its only after it goes on for several years that Samsung may actually redisign a part to correct the problem, or issue a recall. He said Samsung now has a recall on the ice makers that freeze up (as he is standing right next to my Samsung fridge). I said "you mean like the fridge you are standing right next too?". He said "why yes". It was pretty funny. I told him I have 2 of those and both have the same ice maker. ANYWAY..in the end, he said he was going to order all new parts for the entire oven, including the wiring harness, and replace it all. I asked if he knew if any of these parts or harness were updated in any way and he said he did not know. I said " I find it interesting the Samsung would be willing to just keep throwing parts at this issue instead of finding to root cause, which is probably somethimg very simple. He said he was just trying to help me out, and I agreed. He's ordered the parts and said he should be back sometime next week to install, which he said will take all day. I'll update when that happens.

[@radio11head]

tommy do you have the electrical diagram of the oven?

[@Tomrocksu2]

I have the tech service manual that shows quite a bit of wiring stuff. If youll send an email to [e-mail], I'll send it to you, no charge

[@Appliance.Adventure]

Thanks for making the video, it helped me out.

[@Tomrocksu2]

Your welcome!!!

[@nchilds89]

I have been looking for days for any information on this microwave/oven combo and was about to give up and call a service tech but I just found your video, so happy now. Where were you able to find a manual for it? I can't seem to find one anywhere online and Samsung says they will not provide it. After seeing your video I think I can figure out what I need but a manual would be nice.

[@Tomrocksu2]

Nick, Its been a couple of years since I bought it and cant remember from where, but if you can give me your email, Id be happy to send you a copy. Honestly though, the manual was little help. I ended up taking the top off and discovering what you saw in the video which was the burned end on that connector. If the relay it attaches to is melted you will need to replace that front facing board. Let me know if I can help.

[@nchilds89]

For some reason my comment with my email keeps getting deleted. The first part is nchilds89 and a Google account if that makes sense.

[@DWESENTERPRISE]

I have a Samsung gas stove and same error. I opened it up last year and didn't see anything burnt.... Imma have to look again. It's been sitting and my wife would really like to use it again. We just been using small convection oven.

[@tightlinesgl47]

Thanks Tommy , bought my Samsung combo microwave/oven 9/2020 and it shut down . On light is clock work but time is frozen in time , two week to Samsung service tech!😡

[@jtm1977]

Thanks for this very helpful video. I just got the same dreaded error code last weak on my unit. I’ve been back and forth with Samsung about free tech service call. They refuse since it’s out of warranty. Bought it in 2018. So, I’m going to try to repair it myself, if I can source the right parts. Do you happen to have a list of part names/numbers that should be replaced? Should I just do the board and wiring harness, or also the cooling fans and sensors. Note, I opened the top of my unit and inspected the same wire and relay shown in the video. There is no sign of melting or burnt wires .

[@Tomrocksu2]

Jay, the first thing I would do is replace the front Control Board you saw in my video. Please remember I am not an appliance repair guy, but a consumer who knows a thing or two about electronics, AND I hate being ripped off by big tech companies who design and sell these products, but once problems arise, they want to give you the run around about fixing their "defective" products. I got that from Partsdr.com. here is the link partsdr.com/part/de92-03729p-main-control-board . The part number is PD00043136. Its very easy to replace. The wires/relays having so many problems is what you saw in the video. Those wires are from the microwave door switches and the magnatron for the microwave. I would not replace any blowers. The chances that those are bad is so minimal is not even worth mentioning, based on "MY" personal experience and that of others. If that does not solve the problem, AND you have made sure there are no burnt wires or connectors, I would replace the other main board. Here is the link partsdr.com/part/de92-04045c-main-control-board . the part number is PD00057081. Let me know how things work out for you please.

[@mazdaspeedcj]

Same issue. Following your video, I pulled the unit out and sure enough that red wire was burnt to a crisp with a little bit of relay damage too. Hopefully I can just clean it and re-crimp it. Has anyone tried to just run a slightly lower gauge wire between the relay and the door sensor?

[@camillewhitehead4139]

Same error code on our oven bought in 2018. Can you share where to buy the parts and where to get a manual? Thanks for the video!

[@Tomrocksu2]

I have a service manual I can email you if you will give me your address. My guess is you may not need parts, just repairs, like splicing where that wire may be burnt. When I did order something like boards and blowers, I got mine from Partsdr.com. By the way, those parts did not fix my issue, it ended up being what I showed in the video

[@danabateman7125]

Thank you Mr. Woods for this very informative video. I have this model and am experiencing the C - A2 error code. The unit is just about three years old and I assume also out of warranty I have removed the oven from the wall only to find completely intact wiring, no burnt issues. The oven will work for about 10 seconds and then cuts off showing the error code, if you turn it off it works again sometimes little longer than 10 seconds but never more than 2 minutes. When running the fan seems fine. I have ordered the front board with the relay with the hopes it may be defective. I also looked at some other repair recommendations and one was the fan sensor. Do you know if there's a way to bypasses this switch and see if that is the issue before buying this sensor? It sounds that we all suffer the same common issues, I should scrap this oven, and if repaired I can only expect another similar failure soon. To be honest my wife and I both love the style and function of this oven up to this point. I also think there is probably limited airflow once this unit is placed back into the cabinet, there is very little space around this oven in my particular layout.

[@Tomrocksu2]

Dana, my guess is the front board might be the issue. One of the common issues is that the relay in my video, for whatever reason, is drawing too many amps. That relay is actually for the right microwave door sensor and you would not think it would have a high draw, but as you can see in my video how melted that connector was. There are two "hall sensors" attached to each blower fan. One fan is located up top as you have seen, and the other is in the back of the unit, between the microwave and the oven. The sensors can be replaced by themselves, but if your blower motors are both running, that would tell me the sensors are fine. You would have to take off the back cover and run the unit to see if the back motor is running. To be honest, we no longer own that unit. Samsuck could not repair it and ended up paying us $1800.00 for our 2 year old unit (LONG Story). We ended up getting an LG with identical features as the Samsuck unit. Let me know if you get it fixed so others on here can see what you did. Thank you!!!

[@mazdaspeedcj]

Does anyone know the difference between the various boards? I saw “DE92-03729P” referenced here. My board, a Dacor wall oven, is actually using “DE92-03729Q” which is either because of a different feature set or it’s a newer revised board? There’s also a “T” version, which I assume is even newer.. but again, could just be different features. Anyone have any insight?

[@patrickwong591]

Thanks so much for this video! Same error code for our combo oven/microwave. Think it may be out of warranty, so based on other's responses on the internet, seems around a $1000 fix in Canada. Want to take a look myself first. Is there any way to look at the wires and board without pulling the whole unit out? Remove a cover or something?

[@Tomrocksu2]

Patrick unfortunately you will have to remove the oven and then remove the top. Honestly, I used a plastic rolling tool box that was about an inch shorter than the oven, so once I removed the little side screws that hold the oven in plac, I just worked it out of the hole and sat it right on top of my tool box. I left the wireing harness connected as it was long enough, and just shut the breakere off. Once you get the top off, use my video to locate those wires I mentioned. My guess is the ends are burnt and you will need to cut them off and splice new ends on to the wires.

[@Dan-cz5gh]

Thank you, Tommy for sharing this info. I have the exact same issue and confirmed the burnt connector and relay. I was able to buy the relay online but can't find the connector (the white piece in your video). Could you let me know where you got the replacement connector?

[@Tomrocksu2]

I did not have to replace my connector. Although it was burned, the metal ends were still making good contact with the relay, which I also did not replace. I fixed a bad splice on an adjacent wire to the white connector that was made by a Samsung tech, who obviously did not know what he was doing

[@Dan-cz5gh]

@@Tomrocksu2 Got it. Thanks for the reply.

[@benrichmonds]

Hi Tommy, do you have a part number for the plastic connector or where I can purchase? Thanks!

[@Tomrocksu2]

I dont, I did not replace it. When Samsung sent their tech out the first time I had the issue, they are the ones that spliced on that pigtail with the connector, but the splice they made was not done correctly, so it burned through where they spliced it. I cut the spliced section out and did a proper splice using the same short wire and connector that they used. It looks like a generic large female spade connector that you used to could by at Radioshack. Not sure if you have one of those where you live.

[@humptydumpty1166]

Thank you sir 🤙

[@samsungappliancessuck]

Hi Tommy ~ Happy Holidays! Thank you for posting this video - - Our oven crapped out after 4 years of no issues...We ran a cleaning cycle after using it all day yesterday and it wouldn't turn back on. Just the 6 touch buttons 3 on each side and the screen was black in the middle. I guess it was too much cooking for it Id imagine...anyhow, pretty handy and I cant find a service manual anywhere that doesn't seem like a scam to get my cc info. Are you able to send it to me?

[@Tomrocksu2]

Id be glad to Matt. My email is [e-mail]. Send me an email and I will respond with the service manual

[@samsungappliancessuck]

@@Tomrocksu2 Sent

[@LivinLrge]

Hope everyone gets a laugh out of this. As I was taking apart the unit...I discovered many parts labeled 2011 and 2012 even though my unit was purchased in 2018..its no wonder why nothing lasts anymore... its ten years old right out of the box

[@Tomrocksu2]

@@LivinLrge Doesnt surprise me in the least bit!!!

[@technicianusa]

Thank you

[@Tomrocksu2]

Your welcome, I hope it helped you out!!

[@joseevelasco4596]

Hi just wondering where u ordered parts??

[@Tomrocksu2]

When I first started trying to figure out what was wrong, I ordered some parts from partswarehouse.com/ I ordered 2 blowers and a couple of boards. I then opened it and replaced both blowere motors and that didnt work. I then replaced the main boatd that lays flat on tope and that didnt solve the problem eitther. It was when I went to replace the front board, that I found the wire that had burned into again (Samusng originally did a splice to get it working again. Once I fixed the burnt wire and reconnected, it started working, but I did not replace the front board, I re-used the old one. Hope this helps!!!

[@bouncehousebroward]

Hey Tommy, I have the same exact model and I am having the same error code. I just called samsung and they will send a tech company but no idea how much they will charge. Will attempt to check the wiering as you mentioned to see if that is the issue. We have been having overall electrical issues on the house as of late, could that have anything to do with this? My wife's blowdrier started tripping the breakers even after I unplugged everything. A cusinart griddle stopped heating for some reason, and now this. I wonder if unstable electricity might be the root of all this or if this is all just a coincidence.

[@Tomrocksu2]

Its probably just a coincedence. My guess is, if you will pull the oven out and open up it up the top and take a look at what I showed on the video, you will find that to be your problem. ust a guess though. If you will look at all the posts on this site you will see this is an ongoing issue with this product from Samsuck.

[@AnitaYusuf-McKinnonPS]

Hello Tommy. We have the same issue as you. This is the second time that it has happened. After Samsung replaced the parts one year later it stopped working. Could you please give us the specific parts you ordered online or bought to fix it. We will try to fix it ourself this time. We have a friend that is an electrician. Thank you so much!

[@Tomrocksu2]

More than likely you will not need to purchase anything. Instead, after I opened the top up and was going to replace the front board, thats when I found that wire I show in the video had burned in two. I splice it back together, plugged it back into the relay and that solved the problem. Thats typically what everyoe here has found. Let me know if this fixes the problem so everyone here can see that please.

[@bradw8274]

Hi tommy. Same unit, same error. Do you still have the service manual that you could email? I had the Samsung tech here to replace the microwave turntable gear shortly after install under warranty. Now I have the c-a2 error code and my turntable stopped spinning at the same time. I’m going to kill the unit out and check the board/wires but wouldn’t mind having the service manual because it sounds like I will continue to need it. Thanks again for the video.

[@Tomrocksu2]

Brad I would be able to send you a copy at no charge. Give me your email and I will be glad to send it to you

[@bradw8274]

@@Tomrocksu2 sent you a message. Not sure if it wasn’t allowed? Are you able to contact me via private message for email or how can I get mine to you?

[@Tomrocksu2]

Brad my email is [e-mail]

[@Tomrocksu2]

UPDATE 7-20-21 Samsung sent a tech to my house and replaced the entire wiring harness, main PCB board and the board where the relay and wires has been melting. Prior to his arrival I removed my oven and the top and ran the microwave for 5 minutes, I used an instant read Theropen and placed the tip on the wire. The temperature rose to 130 degrees on the red wire that we have all had trouble with melting. When he showed up I imediately told him my findings and that I wanted to check it after his fix. After he replaced all of the above, we again ran the microwave and this time the temp held at 74 degrees, which is basically the temp in my house. Hopefully this will help all of you. I had to press HARD on Samsaung to get this service covered under a good faith warranty but they did not charge me. Here's hoping this new harness and boards has been updated to take care of this fire hazarad for good. If I have trouble in the future I will post here. I hope you all will do the same.

[@danarealtygroup4379]

Ours just died and it’s only a couple years old. Wtheck? They should have recalls on this, like they do for vehicles. Having any appliances breakdown with in 10 years is unacceptable (really 20 but just being fair)

[@Tomrocksu2]

I completely agree Dana but they will not be doing a recall on their piece of Samsuck garbage

[@goodysgoodies6372]

Question- when you pull it out of the wall, what do you lean it on??

[@Tomrocksu2]

I have a plastic rolling tool box that is almost the exact height as the bottom of the oven. Once you remove the screws that hold the oven in place, I simply worked it out off the cabinet and onto the tool box. I left the electrical power line hooked up, but shut the breaker off. I did that by myself with no help.

[@UberYunSpicyEggroll]

@@Tomrocksu2 Holy crap, what a boss.

[@Tomrocksu2]

@@UberYunSpicyEggroll It really wasn't that bad. I'm definitely no macho man that's for sure. Just finding something roughly the same height and that's sturdy is all you need. Then I just simply worked it our from left to right until it was completely out of the hole.

[@mytoob1958]

I have the same oven and it is not working. Now, if I reset the breaker, then it will boot up for a minute or two and then stop responding to any interaction. Luckily I bought a 5-year warranty. First Samsung sent out a tech and he said the main board was not working and would have to order the part. A week later I called the repair company for an update and they told me they could not get the part so they were reporting to Samsung it could not be fixed. I am getting a replacement but now the cost has gone up $1000. I opened the oven and did not see any burnt parts but I am going to go back and check that again. Could you tell me where you got the service manual? I see a service port but the technician never used that. I just saw him probe a few areas with his multimeter and that was all. I am going to check the fans as well.

[@mytoob1958]

And BTW, Thank You very much for posting this video.

[@Tomrocksu2]

@@mytoob1958 You are very welcome!! My email is [e-mail] . If you will send me an email, I will forward you a copy of the one I bought at no charge. To be honest, the repair manual is kind of a joke itself. And BTW, when I was trying to replace parts for it, I was able to buy them at partsdr.com . Samsuck ended up giving us $1800.00 for ours after MUCH haggling with them back and forth. We ended up purchasing an LG model that has all the features and looks almost identical to the Samsuck model we had.

[@sameermalik8580]

I saw you somewhere I think breaking bad

[@mariasmith4532]

Where did you get the cable from?

[@Tomrocksu2]

Maria, When the unit first had problems, Samsung sent their "Techs" to replace a bunch of parts and that's when he first found the burned connector. When he replaced the connector and a short piece of wire attached to the connector, he had to make a splice about 4 inches away from the connector, which he did improperly. About a year later, I got the C-A2 error code. I didn't want to spend another $1000.00 so I decided to pull the unit myself and try and fix it. The Samsung repair manual says to first check for wiring problems, which I did, and then they have you replace various parts. The problem with the burned wire was it was sort of hidden from view, and I did not find it until I went to replace a board. There are a number of connectors you have to remove and that's when I discovered the problem. The burned part of the white connector you saw in the video was facing down and could not be seen from above. That connector actually ended up being ok. The one where the Tech made the splice had to be fixed properly. I did that by cutting the two ends of the wire and to get to clean wire, then I slid a piece of shrink tubbing onto one of the wires, twisted the two wires together, soldered them and then slid the shrink tubbing over the soldered part and heat shrunk the tubbing to insulate the splice. If you find you need a connector you can find them at various parts places online. I used partsdoctor.com

[@UberYunSpicyEggroll]

@@Tomrocksu2 Hi there Mr Woods, you wouldn't by chance have that URL for the parts you purchased from partsdoctor.com? I have THE same exact issue right now, and the wife was scared as there was smoke coming from the top left side.

[@Tomrocksu2]

@@UberYunSpicyEggroll You need to check those 2 wires I showed you in the video first. They are on the very end of that board in the video. Look along the wire for any burnt sections and cut and splice back together if either is burned. That will most likely be the problem. None of the parts I replaced fixed the problem. Also, I say in the video that I replaced that top connector, but I misspoke. I fixed the improper splice on the top wire that a Samsung Tech made a year ago. To properly splice you have to solder them together, not twist and wrap with electrical tape like he did. The plastic part of the connector below the wire I fixed was melted, but the metal spade terminal and wire was fine, so I just slipped it back on. If you still want all the part numbers let me know, but most likely your problem is with one or both of those wires. Tommy

[@leyu9083]

This particular burnt relay(link to the microwave power source) runs really hot. The red/white line both have 15amp. Samsung should have put a bigger relay on the board, but they only put in a 16amp 😞. The simple solution is don't run your microwave longer than 5 min. You can run 3min let it rest and run 3min again. You can replace it with bigger relay if you are good at soldering. Wire is not the core of this problem.

[@Tomrocksu2]

Thank you for your comment Le Yu. I am NOT an electronics guy and know very little about the technical side of things, BUT, Ive been around the block a time ot two and know that too many amps being pulled through too small a guage wire, will lead to a melted wire/connector (which is what mine did). Coupled with what you say is an undersized relay and Samsuk would have had a chance to make things right, but chose to ignore what I would deem a fire hazard. Thankfully they offered me $1800.00 to get rid of that piece e of junk and get something MUCH more reliabe. We found basically the same oven on the LG brand and over the last year have had NO problems.

[@leyu9083]

@@Tomrocksu2 GOOD for you on the settlement!!! The red wire is has very high heat rating, but the white connector does not. The heat comes from the coil inside that relay did all the heat damage. It is a bad design.

[@leyu9083]

@@Tomrocksu2 I forgot to mention, the red wire is not a 120V line, it is 60v AC.

[@Tomrocksu2]

@@leyu9083 I tried telling them that but of course their customer service is HORRIBLE!!!!

[@lancelenhart2276]

@@leyu9083 if you did replace the relay. Would that fix the problem and the wires would be fine? Also do you have a recommendation for the relay replacement?

[@danielpersa2688]

Had this exact same thing happen but they say they must order a whole new wire harness on top of the motor and sensor to have the correct amount of amps going through. Seems like overkill, especially if the motor still works.

[@Tomrocksu2]

Daniel, have you seen the unit opened up for yourself?

[@danielpersa2688]

@@Tomrocksu2 Yes i'm looking at it right now. Same wires are melted leading to the HVT relay.

[@Tomrocksu2]

@@danielpersa2688 how much of the wires are melted?. Can you shoot me a Pic?

[@jasonInBTR]

I made this same repair on 01/2020 and today, same C-A2 error. Looks like I am cracking it back open, replacing the board/relay and doing some splicing. Anyone have an idea of the root cause?

[@Tomrocksu2]

Jason, somewhere along the way I thought I saw a post that Samsung had a new wiring harness available to fix the issue. Its for the ones you and I have had to splice I believe. I can almost guarantee that is is not anything but that or the burned connectors on those wire ends. I'm going to dig some. I'll post if I find anything.

[@jasonInBTR]

@@Tomrocksu2 - Thank you sir. That is sort of what it seems like to me. Wiring is undersized for the load. I have a few support cases open with Samsung and I am going to push them for root cause repair. Will post here with any updates.

[@jasonInBTR]

@@Tomrocksu2 - I did order another mainboard as my first one most definitely took the attached relay in the meltdown. Hopefully Samsung can come through with a replacement harness.

[@Tomrocksu2]

@@jasonInBTR If you dont mind, can you post whatever you find on here, and I'll do the same? This seems to be the only post people can find online that is shedding light on this subject since Samsung has chosen to be mum. I have thousands of dollars invested in Samsung products from over the years, but I'm going to have to start looking into using other brands as all Samsung seem to care about is making money. VERY poor customer service.

[@jasonInBTR]

@@Tomrocksu2 Samsung will only send an "authorized technician" at my cost as it is out of warranty. I threatened legal action on the basis of consumer safety and they have offered a one-time out of warranty service repair. I still don't really want a Samsung tech in my house but I may go that route. Thoughts?

[@robertainsworth6059]

1:29

[@evettearvelo6357]

My Samsung wall oven reads C-A2

[@Tomrocksu2]

Watch the video and check out that wire

[@robertainsworth6059]

Ours is over heating when Bake is on...broiler kicks on and won't turn off...use breaker to shut off. Code says call Samsung tech. Afraid to after watching this.😮

[@ncwoodworker]

Two weeks past the two year warranty my Samsung wall combo failed. CA-2. Main control boarded failed. $1000 repair bill. Don’t buy this piece of junk. You will regret it.

[@Tomrocksu2]

Samsuk should have recalled all of these units for being a fire hazard!!!

[@ncwoodworker]

Correction Tommy. Two weeks past the one year warrenty.

[@Tomrocksu2]

@@ncwoodworker That really sucks!!

[@ncwoodworker]

Thanks for helping us get the word out about Samsucks poor quality of a product. Hopefully it will save a lot of people time and money.