[EN] Roborock S50 - Error 13 - mainboard fuse exchange

This video is a 1:1 recording of the fix of a Xiaomi Roborock S50 having the error 13 ("Couldn't charge properly").
Replacement-fuses can be found by searching for "PTC 30V 3A" on your favoured shop.
Chapters:
1. Exclude other possible causes at 1:41
2. Disassembly of the bottom side at 6:20
3. Check the battery at 7:20
4. Continued disassembly of the bottom side at 8:55
5. Disassembly of the bumper 16:22
6. Disassembly of the top side at 17:54
7. Preparation of fuse at 23:11
8. Replacement of fuse at 27:36
9. Minimal assembly for testing purpose at 44:33
10. Verify fix by charging battery at 52:10
11. Complete reassembly at 54:35
12. Disclaimer at 1:04:22
If you have any constructive criticism that may be useful for future repairs of others, just leave a comment below.
I am sorry for the blurry image for the replacement process - my camera is crap for closeups =/.
If you want to say "thank you", I appreciate getting a donation for a tea using PayPal (used for e.g. to get a better camera):
www.paypal.me/BenediktKrueger

[@danijel124]

To those guys who keep having error 13 even after the charger, battery and motherboard were changed try checking the charging pads on the robot itself. One wire desoldered on one of the charging pads on my roborock and I had error 13 even after motherboard change. Upon closer inspection i noticed it desoldered and then when i soldered it back the robot was new again... And this solution is nowhere on the internet i have discovered it by myself :P

[@nellscott9105]

How much of the robot did you have to disassemble to access the charging pads? I replaced the motherboard but still am having error 13 issues, so I'm thinking of taking it apart again to check the charging pad connections

[@nellscott9105]

I just went for it and took it all apart again. I had to do the entire disassembly and take the motherboard out to be able to see the wires that are soldered to the charging pads. Unfortunately they were in fine shape, so that wasn't my problem. At least it was faster to take apart and put back together the second time!

[@danijel124]

@@nellscott9105 Then it is probably the charger or the battery at fault... Error 13 can be hard to solve...

[@nelsoncasquinha]

Just wanted to say thank you, as your tips to remove the fuse were priceless. Toughest removal I've made so far of a component, but it's working nicely :)

[@grantxw8]

Excellent tutorial. Many thanks for this. My little robot is autonomous once more. It's been about 30 years since I soldered anything but this made it easy. :-)

[@kzimm200]

Thank you! Your video was exactly what I needed. You showed every step, and fully explained what you were doing and why. This was a HUGE help. My robot is once again happily vacuuming the house.

[@mvakkil]

Great video. I had the same issue and I was able to change the part by self. The removal of the poly switch was the tricky part. Thank you again for the video.

[@Simonbove]

Your English is very good, don't worry about it. We all understand you 😊

[@ex.perdition]

I changed the fuse and it didn't solve it, but used this video twice, once for the fuse and the second time for the motherboard. You're a legend!

[@eduteles]

Thank you for the walkthrough on how to remove the fuse!! It's working great now, after replacement!

[@cwagz78]

Great tutorial! I was about to buy a new motherboard until I saw this video. Went to my local electronics store and bought a fuse and installed it today. My vacuum is now charging and no more error 13 message. Thank you so much.. ..

[@yino89]

Hi Bastelbank, thank you for the detailed repair guide. My Roborock S50 was working fine after the fuse change.

[@user-cb3bk5vk1z]

Thank you very much! She is now working perfectly. Your video helps for repairing it a lot.

[@nlvhp72]

Awesome video! I switched out my main board as is ordered it and received it before I found this video. (your disassembly instructions are great!) But will be repairing the old one once I get some fuses. Greatly appreciate the effort it took to make this!

[@danitoscanobecerra]

Wow, your fix works like a charm! Thank you SO much, man!

[@sydlouise]

This worked for me. It was my first time soldering anything and it failed first time (bad contact) but worked perfectly 2nd time. Taking the old fuse off was by far the hardest part its really hard to budge. Thanks so much for the detailed instructions.

[@grahamnumber7123]

Englishman in Rosenheim here and your 101's sub. My knowledge of electronics is pretty good but you saved me a lot of time! Your English is fine and thanks for this! Exactly the same problem. Part ordered Vielen Dank & Schöne Grüße Danke

[@stephenwelsh5373]

Wanted to say a BIG THANKS for this video. My S5 had this exact problem and with your video I was able to easily fix my otherwise-useless vacuum. Thank you SO MUCH!

[@SmackMyDerf]

My S50 came back to life! Dankeschon for this tutorial, I didn't think I would be able to do it! Best wishes from Kuala Lumpur, Malaysia.

[@user-mg9ky6ms3q]

Thank you for your kind. My robot can back to work because of you.

[@atendero1958]

Hi Bastelbank, Many thanks for your detailed video. I followed your interesting guide and Roborock came to life. Thanks a lot!

[@eefonglee]

Danke shoen! This was a very detailed and educational video. Not sure if my husband can do it though. But it certainly makes me appreciate how much work is involved in replacing a little fuse. Now I just need to find a Roborock repairer in Singapore, who is as good as you. And your English is excellent 👍🏻

[@elady2765]

I have 2 words to say. Thank you! Great tutorial, all works well.

[@countzero1727]

Thank you for this instructional video. My roborock fuse failed out of warranty. I managed to get it working again with your guide.

[@Vakukl]

Today, with you video I've fixed my Roborock. Thank you for great description!

[@BudiSantoso-en8tl]

I got this "error 13" after using my roborock for 11 months. Everytime i got the error i needed to turn it off, wait for 20-30 minutes, then i could charge it for another additional 2-3%, and the robot voiced the error 13 after 3 minutes, and the cycle repeats until i could charge it to 100%. Now that you pointed the problem with the thermistor fuse, i can understand and confirm that the symptom in sync with the behaviour of the fuse. When the temperature rises, the resistance will also rises and the current to the battery might be reduced, and so the error 13 happens. Even if the charging contacts are clean, there is a broken part in the robot that blocks the current to the battery. Super! Herzlichen Dank fuer dein Tutorial. Schoene Gruesse aus Indonesien

[@bastelbank5855]

Hi Budi, sehr gerne :-)! I am so glad that this tutorial already helped out that many people! Good luck on your repair process!!

[@julientournier9158]

I manage to fix my s50 thanks to your video ! Thank you

[@maxime31310]

Thanks a lot for the walk-through! I avoided the pain of removing the original fuse by installing the new one in parallel, which also worked fine :) In other words, after 'cleaning' the original fuse to avoid bad smells, I soldered the new fuse directly on top of the original one.

[@bastelbank5855]

Hi, even if this works, I suggest to remove the old fuse to stay save. As you now have a kind of unknown current that may get through those fuses. But hey: As it is fixed now, you can be sure, that the fuse was the root cause ;).

[@hello2maggot893]

Thanks, struggled a bit removing the old capacitor but got there in the end. Great tutorial.

[@MennoSchepers]

Hi @Bastelbank, thanks for this video. Very useful, clear and complete.

[@robinschmitt2523]

Thanks for this video - allowed me to fix my robot with confidence- great video.

[@eoh8915]

Thank you so very much!!!! I had been dealing with the error for three months. I'd clean the contacts and it might go a cycle or two before the error would happen again until cleaning contacts did nothing. Not knowing if I could repair it and having never used a soldering iron I purchased a Wyze Lidar robot cleaner while also ordering the chip and a soldering iron a week ago. I followed your fantastic detailed directions and managed to ( barely but securely) solder the replacement on. While your video is blurry it's nothing that cant be overcome especially if I could do it with old eyes and no motherboard soldering repair experience. My soldering work looks horrible but it's effective. I took my time. I had no multi meter to check my work or analyze before beginning. For anyone reading after reassembling MiHome app at first could not see the vacuum and would not load a map. I ended up deleting the app ( and cache and memory) and resetting the S5 as well. After reloading the app and linking into wifi, the S5 found and loaded the old good map. I waited until the battery recharged to 100% and just ran it at Turbo in 5 rooms. After completing It went back to the dock with 78% charge and it's now at 92% and charging. I plan to run it twice a day over the next 7-10 days to be certain the charging issue is gone. Thanks again and your English is fine!

[@patrickng5464]

Very helpful! Unlike almost everyone else, I got an "error 14, battery malfunction" and the user manual was useless. Replacing the battery didn't help. Your video enabled me to eliminate the charging station as a possible cause, and to disassemble the robot. I decided to swap out the entire motherboard with a replacement from China. This rectified the problem, and saved me hundreds of dollars. Thank you very much.

[@OnePointLander]

Just did this to mine, pretty straight forward. Thank you. Also, I've noticed that the motor is running at full speed in Turbo now. Running like new with a new battery changed at 4 years.

[@annatolochko7633]

Thank you for the video! It makes me mad, that modern appliances are so hard to disassemble in order just to clean the cooler, but with your video I was able to do it myself.

[@davec9485]

Thanks for the guide. I will be attempting this soon. It’s funny, first my roborock got error 1, apparently a fault with the LiDAR. So I ordered a replacement motor (cheap) but also the LiDAR module (dearer). Motors got here first, and that got it going right away, but as soon as it ran out of charge and went back to the dock, now it gets error 13, so here I am watching your guide. Thanks for sharing!

[@danijel124]

Honestly these roborocks when they function are amazing. I have them for aprox 4 years now and they work autonomosly. Almost no issues getting stuck... They just work and are extremely precise

[@dominiqueheini2501]

Great Job I really enjoyed listen to your explanation. .

[@markthecuttysark]

Big thank you from Western Australia! New battery on its way anyway but very useful video!

[@vasileb3136]

just done this on my both robots thank you for sharing this man

[@exosuit3442]

thank you very much ! I repaired same issue by fuse change . God bless you !

[@GuillermoGomezBolanos]

Hi from Colombia, i did exactly u show us and works perfectly. Thank you for post this video. I love my Roborock (we call 🤖 Rosie - The Jetsons), now its working for us.

[@diegonaranjo1782]

Thanks alot for this video tutorial, I could fix my roborock even with a zero skill soldering :)

[@cakemf]

Thanks so much for the detailed walk through. We follow your instructions and successfully repair our own robot! THANK YOU VERY MUCH. You're so cool! The world need people like you. Your English is very well understandable :) cheer up!

[@watwatwatwat]

Thank you so much for the guide! I accidentally damaged the component next to the fuse when I tried to clean up the contact point, totally avoidable mistake. Fortunately I bought a second hand motherboard with a damaged fuse for $3 and redid the process. This time it worked like a charm!

[@aamir5458]

I want to thank you for your excellent video, that has helped so many. I had the most difficult time trying to remove the damaged resistor and was worried that I would destroy the motherboard but it worked and now my S5 is is charging as we speak.

[@staffanwetter942]

Awesome tutorial. I soldered the new fuse over the old to avoid the risk of damaging the motherboard. It worked and the vacuum charge properly now.

[@scottsadler484]

Thanks for this, I was wondering if I could do that too, once I got the ends of the old fuse to be bare. I was just wondering before I put the whole thing back together.

[@staffanwetter942]

@@scottsadler484 Yes, why wouldn't you? Just make sure the solder connect each side. Mine has been working properly since i posted four month ago.

[@scottsadler484]

@@staffanwetter942 Yep mine's working now too! Cheers.

[@lordmochy]

Did u do any picture? How it works if the other fuse is connected also?

[@staffanwetter942]

It works, trust me. I dont have a photo.

[@kevinkelvianto2627]

Thanks for the great tutorial man. This tutorial helps a lot with my roborock repair, although i soldered the fuse on top of the old fuse tho. Now it's working again. Thanks mate👍

[@bastelbank5855]

Hey Kevin, just a short reminder, if you bridge the old fuse, you have an unknown level of safety. It is much saver to remove the old one - but I understand bridging is more convenient ;). Anyway - repairing the robot is not only cheaper - it helps to prevent unnecessary trash :). Well done and have a lot of fun with your new old cleaner :-)!

[@willytremblin9881]

Bonjour. Merci beaucoup ! Je n'y connais rien en électronique mais votre tutoriel a été salvateur. Grâce à vous, j'ai pu réparer mon appareil. Sans quoi, il aurait fallu le remplacer, et là, pour 0,25 €, il redémarre. Merci à vous pour mon budget et surtout pour la planète. Merci, merci, merci !!!

[@BubyMTB]

Excellent! Worked like a charm

[@myronlo4141]

Thanks for the video! I ordered F2871CT-ND from Digi-Key and now the machine works great. The original fuse was definitely tricky to de-solder, but I was able to carefully remove one layer at a time. Also, I used alcohol wipes to eventually remove the conformal coating. Thanks again!

[@spidxer]

The best tutorial . Im Fix my s50. Thanks.

[@obzorOFFnet]

Thank you so much for such a detailed video!

[@Microtic]

Great video. Very relaxing. I wanted to find out what I would need to do to take apart my Roborock and this helped a lot. It's nice that they used easily plugged in modules for the side brush, wheels and battery instead of ribbons everywhere. 😅

[@thefly1976]

thank you for you guide , I solved my issue following the step indicated in your video .

[@ds79569]

Thanks man! Yor video was exactly what I needed!

[@liota2002]

Thank you so much for this video! My S50 had this problem and thanks to you, I was able to fix it! Thanks a lot! :)

[@SpardaSP]

THANK YOU!!!! MY CHILD IS NOW WALKING AGAIN !!

[@andrzejkot6042]

Hi. Your tutorial was very helpful. You are good at this. Greetings from Poland :)

[@antoniosuch9313]

Muchas gracias, muy bien explicado. Ya he cambiado el fusible y ya está funcionando perfectamente.

[@luismorales3410]

¿Dónde has encontrado el fusible? Gracias.

[@burnoutslo]

Great video, and my robot isn't even broken (yet)!

[@mihaliskioussis]

Thank you for this video and for the money you have saved me. :)

[@ponpon5919]

Thank you so much ! Great video, it solved my problem so far 👍🤞

[@bm2088hp]

This fixed Error 13 on my Roborock E25, thanks!

[@caiofariasgs]

I love you!!! I've just fixed mine! Thanks a lot!

[@teodorgorka]

Thank you very much for this!!!

[@PrzemekMiszczuk]

Thanks for great tutorial - I managed to fix my robot without any soldering skills. The total cost was just $20 for a soldering kit with multimeter.

[@bastelbank5855]

Congratulation to your new old robot :-)! May the force (aka the S50) last for a long time with you!

[@przemek4457]

Cześć. Gdzie zamawiałeś zestaw do lutowania plus miernik?

[@marcinklekot]

Great Video, it helped me a lot. Thanks!

[@alekslk]

Hi. Thank you for the detailed explanation. I am wondering, why are we replacing the 1.85A fuse with the 3A? Is it still safe to use a fuse with a higher amperage rating?

[@naidol]

Thank you. Excellent 😊. Most helpful part was the removal of every screw. I replaced with smd 1.85A 2920 fuse. Remove with two soldering irons, one on each side at 400 degrees C, if you don't have hot tweezers, which I did not have.

[@5Komma5]

You can check if it is the fuse by allowing the robot to cool down before putting it back on the charger. These fuses trip due to heat and will trip sooner the hotter they get even without previously tripping. The robot will probably show first signs directly after it cleaned for a bit. The unit will be warm from vacuuming and then stop charging due to an old PTC tripping. Let it cool down for 15 minutes then put it back on. It may now charge or charge longer then before. If charging works then the fuse it not bad enough yet but will probably fail soon. If it stop right away it may be something else.

[@user-en4on9jy2u]

Thanks for that video! Worked like a charm ! ;-)

[@janosgulyas2207]

Thank you for the video. My roborock works again.👍

[@Qnoops]

My robot is 4 months old, it's started to not charge properly sometimes. But not always, 2-3 times a week. I think in the future I will have this problem so thank you from now, I will use your video to repair it.

[@Rostic1983]

Same problem, did you end up fixing it?

[@Rostic1983]

Someone mentioned its a software issue, did you reset it to default which also downgrades firmware?

[@Qnoops]

No I didn't downgraded, I am using latest version.

[@Rostic1983]

Qnoops did a reset of unit which downgrades firmware, its not charging as normal

[@mavrodyapetrov3424]

My friend thank you for the video it fixed my problem and the vacuum naw charge as normal also i used 30v 2.5A instead of 3A Couldnt Find 3A one.

[@ryvaenge]

Thank you. Very small contact points after removing the old fuse? Didn't think it would work, but assembled it back and it now charges 👍

[@go4goldandgod]

Many thanks for the video... my robot garry is fixed!

[@ricardotsato15]

Greetings from Brazil ! I'll try to disassemble myself!

[@chansJar]

@Bastelbank Hi, i have Strange error on one S50 - device didnt charge with 20V, and on charging pads, under Roborock, looks like there is short circuit. I've change fuse and remove battery control module but still have nearly 0 ohms on charging pads... Do you have any idea how to fix it?

[@user-sg8qk4fi1o]

thank you very much!!

[@chrispark2415]

You saved my roborock vacuum so thank you! I bought the same J185 fuse as a replacement but it was a bad idea as I needed to replace it again within just a few months. Can you recommend a fuse I can buy as the next replacement fuse that is more durable? Apologies I don’t know much about resistance and fuses so I went with the safest option of buying an identical part the first time.

[@staffiesaregreat]

Great tutorial!

[@markadler360]

Thanks for the video. I disassembled my robot and tested the fuse, it reads between 0.0-0.1 ohms, so seems to be ok? Does the dock seem to be the next most likely culprit?

[@plawp69]

I went into this with no soldering experience. When I took the bad fuse off, there were two reddish rectangles underneath. Are those solder pads? I removed those too and there was a metallic material underneath the red rectangles. Was the new fuse supposed to be soldered to those red pads? Excellent tutorial btw.

[@olafmarzocchi6194]

Thanks, I thought opening it was more difficult. PTC 30V 3A but which resistance value? In Conrad there are many.

[@balazsmeszaros6644]

Excellent description. It gave me the idea to measure the voltage on the docking station and in my case that was the way for the solution. For me the springs under the charger contact on the docking station were weak. I bended both to make them harder to push down, since I did not see this error. How I found this? :D I wanted to measure the voltage of the docking station output, so I pushed the measuring pins under the springs and the problem did not occur for a week. So I concluded that it must have something to do with the springs, I bended them, since it's OK (while the error came up every day before). Btw I could not completely disassembly my Roborock to remove some dirt from the motor, your video helped to do it.

[@truedox]

I've returned after about 2-3 weeks to report that this worked for me. I took off the bottom plate of the charging base, removed the pads and put a bend in the arms to have them apply more force upwards. No errors since doing this.

[@zephirusvideos]

@Batelbank: Thanks for this great video. I have the same issue in my robot. In my local store I can only find PTC 30V 2.5A or 5A. Is it ok or I must use the 3A only?

[@bastelbank5855]

You can also use the 30V 2.5A fuse - this is fine as well! The fuse should be somewhere between 1.85A and 3A (on 30V rating).

[@zephirusvideos]

@@bastelbank5855 Ok thanks! I think I found one - mauser.pt/catalog/product_info.php?cPath=642_311_480&products_id=095-0033

[@zephirusvideos]

@@bastelbank5855 Hey man, just want to thank you for the video. I have my robot back!!! Thanks!

[@manosperis9713]

Thanks for the amazing video. I got error 13 and measured the battery at 12.8V and the fuse at 0.8 Ohms; would you recommend to change the fuse first and see if the battery with resurrect? or go for both battery and fuse replacement?

[@bastelbank5855]

Hi, at first I would try to revitalize the battery by replacing the fuse. You *might* - as a short term solution and *ONLY* if you stay with the roboter while it is charging - buypass the fuse to try if this fixes the issue. As you did not provide any more details, I am unable to tell you how likely just the fuse is broken. Anyway, you should not discharge the robot any more. You *might* also try to place the powered off robot on the dock - if the fuse is broken, it will power up and it may start charging some percentages. After ~30 minutes you might power off the robot again and measure the batteries voltage. Anyway, I suggest you to replace the fuse first! If the battery is not broken due to its current drained state (maybe you are lucky!) there is no need to replace it :-). Good luck!!

[@gemadas]

YEs! WORK PERFECT!! Thanks ;)

[@GingerNingerGames]

Just changed the capacitor in the dock to no effect, so I guess I'll do this now, good video.

[@Zarkuon]

Thank you, man, excellent video. I've measured 0.2 ohm for my original fuse, but I've decided to replace it (after all that disassembly), but unfortunately the error still occurs. Any suggestions?

[@pedrolezgarcia]

Muchas gracias muy interesante el vídeo si me sigue dando error 13 me plantearé hacerlo

[@floridvaleev]

Thank you very much!

[@evkonoff]

I am about to change fuse on my Roborock S5 but I have conserns about 30V 3A. isn't it too much? I mean charging station can break too and tha vacuum itself can be damaged in that case. But I am not an expert so I want to ask what do you think about it? Why did you choose this exact model of fuse?

[@candas1]

Thank you so much!!!!

[@peacertr]

Very helpful video thank you.. can you please specify what kind of fuse i can use ?

[@TheTTVert]

Is this for a permanent error 13 or intermittent? I have an intermittent error 13 and I cannot see a fuse causing any intermittent problem unless it's a resettable fuse which this SMD one isn't. The contacts on base/vacuum are perfect.

[@SakakiDash]

I would recommend a wide soldertip for desoldering like this or very small hot airgun.

[@sezerdevrim568]

Hello my friend. I have xiaomi mija 1C mop model. i have the same problem. There is a 1.65 a 30v PTC fuse in Turkey. I wonder if this repair method will fit my model?

[@nitrovent]

Instant like when you mentioned MacGyver :D Mine's got the same error, hope it's just the cap in the docking station as I just had the robot disassembled the other day to root it and install Valetudo.

[@pablosanchez2725]

Thanks!! Working! I forgot install dust filter :((

[@truedox]

Maybe very risky and destructive, but I wonder about cutting out an access port above where the fuse would be. At least it will be covered by the trim plate when done.