How to: Fix a Broken Magnetron in your Microwave

[@Timmyc4t]

GREAT To the Point Video! I'm a Corporate Trainer responsible for over 60 employees on Computer Software and Management.. this guy is a Great Teacher.

[@CasualNohbody]

Lol is this sarcasm? This was horrible. Didnt even show how.

[@swirvan]

Rock and roll horndogcity thank you for the tutorial 👌🏿

[@sand0077]

On my 2008 Panasonic NN-SD697S, I'm getting repeated burn marks in spots where the door makes contact with the oven. After sanding then leveling out the burn depressions with auto body filler, I refinished the interior with special cavity paint, flat black high temperature on the door and new wave guide cover yet the issue persists. Any idea what's going on? Thank you!

[@HangTimeDeluxe]

You should consider changing the title of the video to "How to REPLACE a Magnetron in Your Microwave." Clearly you are not showing how one could possibly repair the Magnetron, so the current title is misleading.

[@hvacworkshop4791]

Actually someone did replace the plug on the magnetron to repair it.

[@Junaidddevil]

Most magnetrons have beryllium oxide (its the pink part) which is category 1 carcinogenic. I would not recommend messing with it. Just replace it. It’s not worth the risk.

[@rosemaryedede5455]

​@@Junaidddevil❤

[@Clyde-jd8ro]

I agree 100% as the magnetron CAN actually be repaired! My cousin is a HIGHLY QUALIFIED TECHNICIAN " SPECIALIST" & he told me it can be repaired! Crap that if you replace the wave guide its not gona work ! Mine works !

[@simonrees4631]

Hello, when finding a compatible magnetron aside from the mounting configuration can I use any magnetron that is at least the wattage of the original? Is the wattage just the maximum it can be driven at? Are all other specs the same, it looks like they all run at the same frequency etc.. EG. for my magnetron which is 900w can I replace with a 1000w magnetron as that is a lot cheaper.. The size and mounting are the same? I believe the capacitor is dictating the output wattage.. Cheers

[@graham3282]

Brilliant ! absolutely fantastic !

[@Proverbs3198]

Could you please tell me what could have happened to my microwave? Yesterday I put the food in the microwave to heat it up and I heard a big explosion inside. The clock and everything else works (there's a light) but the food stayed cold, it didn't heat up and since then it's been very loud when I turn it back on. This is above my stove, not a tabletop microwave.

[@jjjohn5914]

What about inverter microwave. How often does inverter control board go bad?

[@TheNYgolfer]

That's an impossible question to answer. Too many variables, such as how often do you use it? How long do you run it when you do use it ( the longer the greater chance of issues). How often does your electricity go out or surge? One power surge can fry a new electronic device no matter how young it is. Manufacturer's only care that the appliance lasts just beyond the maximum warranty that they offer. After that, they want it to break so that they can sell you overpriced parts or their repair service at ridiculous prices. Keeping that in mind, it should last 5 years barring overuse or power surge issues. Many manufacturers offer extended warranties up to 5 years total. Some go to 10 but after 5 you get the part but pay for labor, which is ridiculously overpriced.

[@tommymack8916]

My wave guide didn't have any marks on it but sporadically my microwave will arc loudly. It heats whenever I run it. Any suggestions on what's causing the arcing?? Its a Frigidaire FFMV164LSA

[@michaelrun760]

I've got the same issue...anyone?

[@joelsloper530]

Mine got super hot on the magnetron side blew the fuse checked all the switches are good put new fuse in just keeps blowing magnetron??? Can you also just replace the tip of the magnetron help it's a really nice looking Samsung I would hate to just toss it thanks

[@Pentatonickc]

Thanks for this video... Please, how do you figure which megatron to buy. I fixed mine and i noticed that the guy that fixed it used a megatron of a smaller microwave instead of replacing the same old one. i am using LG MODEL: MS3949CS /00 230V ~ 50Hz MAX.1450W 1450 2450MHz 1000W the details are according to the sticker on my MICROWAVE

[@kylkim93]

The guy who did the fixing was definitely a Decepticon.

[@danielguevarra8726]

Sir just want to ask do all blower fan in microwave are ac or dc motor?? specifically Hanabishi microwave oven... Thanks

[@beginnertoexpertprohvac3676]

Check your schematics

[@jmdds]

AC

[@samanwijeratne1]

All magnetron will same or there is different capacity

[@jmdds]

different capacity from 500 watts to 2.5 KW.

[@adisHI-IQ]

Do you need the same magnetron model?

[@greanfinisher4014]

I have a 1979 Sears Kenmore 564-9918010 microwave oven. Well, I replaced the original Sanyo 2M140/MG500JN magnetron with a Sanyo 2M140/MG500H which I had recently purchased from eBay. Anyways, I not only had to switch the base plates (required drilling out the 4 mounting rivets, and installing 4 new rivets), but I also had to turn the electrical connector on the eBay magnetron 90 degrees in order to install the eBay magnetron. Well, the eBay magnetron does heat the foods, but it does require more time than the original magnetron. Being that the microwave oven is so old, I'm thinking that the eBay magnetron simply has low emission. Any thoughts? Oh yes, I'm using two 0.55uF 2300V capacitors in series since the old capacitor bank went shot some time ago. With the new capacitor setup, the magnetron should cook like before,, but the defrost time will take somewhat longer. You see, the old capacitor bank was simply not available.

[@dboatube]

hello.. what if one of the magnets is just loose and spins? they are not cracked. the 15a 120v fuse keeps overheating and then blowing. a person can get about 15 to even 20 mins of use. the fuse element slowly discolors (over heats) then finally blows. no smells, no sparks, nothing seen as a problem. trans/cap/diode/ safety fuses/micro switches etc are all good. only thing left (to us) is the loose magnet issue on the magnatron is causing slightly to much current to be pulled. the magnatron tests good out of oven. thanks for the vid and any answer you can supply.

[@livesonjura]

I just fixed my microwave oven today. It suddenly had stopped heating and the normal hum (when the magnetron is operating) was also gone. Everything else was normal. The problem was a "stuck" relay on the circuit board. This relay switches on and off the 110 Vac to the high voltage transformer input. So no power was getting to the magnetron because the relay was not switching. I almost ordered a new relay but decided to try a trick. I whacked the relay plastic case with the handle of a screwdriver a few times and bingo, the relay came back to life and my microwave is back in service. I just wanted to mention the faulty relay because this video did not mention it at all.

[@modipamakgato4091]

Did you whack it while the microwave was on?

[@filthyrichandflameingknigh1256]

That's what mine seems to be doing

[@TotalFreedomTTT-pk9st]

I think the 'tapping' helps break up oxidation or corrosion or ??? crud ation on the two electrodes - might even be smart - (a bit stoner) - to use some oscillation device - like long thin plastic tube / rod attached to a dremel spinning at high RPM - and just let it rest on the relay box and vibrate the crap out of it whilst it is running - otherwise this condition won't be fixed - I just thought of this right now and I have a furnace relay that is gonna get this treatment - be safe - just tapping it probably dislodges a crust of crud but I could picture ultrasonics vibrating the electrodes to brand new yet never opening that little plastic case to get inside - food for thought anyway

[@msmurr9746]

What about beryllium?

[@greygoose4x46]

I heard a very loud pop and then no heat and loud humming sound … so I’m pretty sure it’s the magnetron but being that there was that loud pop was that likely the magnet cracking or something in the wave guide?

[@themattinator86]

I have a question. I have an LG microwave oven on the right side were the magnetron is located it heats very up well but on the left side of the microwave it isnt heating much at all, What could that be? I also have noticed as I peak through the fan while it is running one of the element on the magnetron is vibrating/shaking is that normal?

[@RoshDroz]

If the microwave does NOT have a turntable, then look into replacing the stirrer blade. It would likely be beneath a round cover on the top of the microwave. If it isn't that then I'm out of ideas

[@themattinator86]

@@RoshDroz it has a turn table. But I have already got a new microwave oven. Thank you for the reply

[@chrislayton2025]

could you please tell me what usually goes bad when you hear a buzzing sound in the microwave but it's still heating food properly?

[@TheNYgolfer]

often it's a deteriorating High Voltage Diode on the capacitor. Replace it.

[@beausmith08]

the top part of my magnetron is burnt. The top part that you said looks like a spark plug. My wave guide is burnt too. Assuming the whole microwave is bad?

[@stephencosta6373]

The issue for me is the unit is part of a wall oven combo unit (Frigidaire), so no easy to access.

[@Recipro1]

What's your OPINION if you find the magnetron two pin connector plug melted in half.

[@RoshDroz]

Could've been a poor connection. All the current had to pass through a high resistance poor contact point

[@BomJimmy]

get new magnetron.

[@aniketpatel4765]

can we use magnetron as a microwave generator?

[@Kdatoh3]

why can't you just replace the waveguide?

[@virginiaschultz3384]

Your fingers must not touch the metal part of your tool, when discharging the capacitor

[@massivewangman]

yer this is the dumbest thing i have ever seen

[@0714will]

😆

[@jmdds]

Exactly. I got zapped from a pair of pliers with cracked insulation.

[@gerardoserrano4801]

Very informative! Thanks for the safety tips

[@Appliancefactoryout]

You bet! ⚡⚡

[@Kdatoh3]

my magnetron burned out. I see the spark and then it burned out. I replaced it and tested a new one. It burned out again. It gave the spark. And then burned out. What could've caused this magnetron to keep on burning out like that?

[@rosemaryedede5455]

My terminals on the micro wavea sparks

[@tptm100]

My question is can a microwave slowly weaken where it takes a little longer to heat something up? And is there a rule of thumb for heating something up like water and how long to reach a temperature. Thanks

[@onegorgeouschick]

I would think slower working wd b power grid But don't take my word for it

[@onegorgeouschick]

1 cup water usually 2min depending on v

[@trennsayer]

Hi Trenn from Australia, Just wondering if you could provide some guidance, my Mom is 83 and cant really afford a new Convection Micro so I thought I'd have a quick look. Took the and cover off, and I understand you comment in the video of the capacitor retaining charge so carefully removed the ceramic fuse. I replaced it and also the globe just incase the globe had gone short. I tested the convection element 40ohms so not short but isn't used in the micro mode. I turned it on and things light up. Then went to heat a small glass of water as a test and fuse blew. I have previously had a microwave where the magnetron failed to heat but fuse didn't blow. Can you please suggest what else it might be?

[@johanswanepoelswanies7483]

Sir If I may ask, I have no heating with an additional hum that came with the no heating. The hum is very distinctive. As a first timer to attempt microwave repair could that be and indication or symptom of one of the specific components you have mentioned being faulty , also there is the electrical burning smell. Thank you for the video.

[@frankmphuru8347]

You Said fix not change???????

[@XRLostCause]

Our LG microwave stopped heating and now makes a 'tisk' sound on and off while it is running.

[@speed_rider362]

You do not need security bits. You have two other options - either break off the security pin and use a standard T15 bit, or you can use a flathead screwdriver betweet any of the two edges.

[@kevindickerson8036]

People generally don’t repair parts just replace them .how much is a new magnetron in USA ? Might be best just to buy a new microwave.I’m sure there all planned to fail after so many uses .I wonder if there’s anything that can help prolong there life- preventive maintenance

[@nicknackpattywackshow5011]

Just remember you can always get past the security bit by taking a flathead and knocking out the middle point then all your left with is just a t

[@lesliedaisley7846]

Your video title said how to fix a broken magnetron bro which is rather misleading

[@johnnyfweb]

I've got a magnetron with a hole in the terminal (looks like a spark plug). I'm going to replace the wave guide cover. We'll see if (like this guy says) it will go bad. If it does, hopefully sooner than later so I can get a refund on the magnetron.

[@corylangston9784]

Did the new wave guide fix it for good, or did the magnetron need replacement?

[@ReptileKing999]

Yeahhh, mines looking like it discovered fire, doesnt matter as I am only using this machine for bits now anyways haha.

[@lgonzalez1154]

Funny I fixed 1000 microwaves and it's always the diode never the magnetron

[@kartencarter8135]

Wow, great info. 😳😱😯

[@Lawless187indika]

I have a Oska brand microwave thats not heating. Seems to be magnetron. Def Whats ur take?

[@johnspeck616]

Thats not broken its faulty,being a bit pedantic I know bit a broken means phycially broken and faulty means its not operating correctly which is actually what he means.

[@samwillard5688]

Discharge ANY CAPACIOTOR WITH A METER!!!!!

[@matildemorales3085]

Wow I call that profesional you should be teaching at nasa men

[@amenen01]

What does the antenna "looking like a spark plug" means? Brown instead of silver? Burned with a hole in it? This video is useless.

[@TheNYgolfer]

Well it wasn't useless. There was some good info. Anyways, if there is arcing in the wave guide, that will cause pitting on the antenna of the magnetron. Like little burn marks. That's super rare. I've never seen it and I've done a few hundred microwave Magnetron replacements.

[@Reddogmr57]

​@@TheNYgolferIn your experience with microwave repair and magnetron replacement, I have a microwave that isn't cooking and also giving off a weird smell. I haven't taken it apart and investigated yet, but I think my microwave has a bad magnetron, what do you think?

[@jmdds]

Why don't you show how to test the magnetron with a multimeter instead of swapping with another who could also be faulty ?.Is has happened to me in the past that two new magnetron were faulty in the box when I used to work for GE and Philips.

[@billhill839]

You didn't "fix " anything , your just swapping parts. There is no fixing a magnetron, if bad you replace it. 😀

[@filthyrichandflameingknigh1256]

My get microwave buzz's and the blows the fuse I think it's the magtron or the the transformer. It keeps blowing the fuse

[@BomJimmy]

Diode is shorted

[@filthyrichandflameingknigh1256]

@@BomJimmy you don't think it's a stuck relay do you?