How to test a good and bad microwave oven Magnetron

This is just one of the few ways of testing a Magnetron, as time go by I will show you all the other different ways of testing the magnetron, but for now let your brain feed on this one video for now, when I get more time I will show you the different ways of testing the magnetron.

[@TheTechCircuit]

Continuity or a resistance reading from filament to ground is actually a very uncommon failure mode for magnetrons. The vast majority of magnetron failures involve low emission and resulting low current draw, which is not something that can be tested statically (with a multimeter). So the test in this video will only cover less than 10% of magnetron failures.

[@gerrykoylass3667]

Wow was looking how to check my magnetron and came upon your video. Was so glad when I heard a fellow Trini voice. Was able to tell mine was bad. Thanks man

[@fixitnow2635]

Thanks... This Video was very helpful

[@jessebear1426]

My magnetron passed these two tests just fine, but still didn't cook. There was 3000 volts at the magnetron (yes, I have a high-voltage probe and know how to use it). I replaced the magnetron today, and everything works fine. SO, while these tests will show certain failures, there are obviously other ways for a magnetron to fail.

[@mr.fixit3604]

Sound like the magnetron have a short circuit problem.

[@MichaelAChang]

The test in the video only detects the obvious. Your defective magnetron might have had a cracked (ring) magnet which is also a common fault occurrence that the video test won't detect.

[@MOAON_AABE]

What other ways can and should you test to see if it is bad?

[@noelnadasan5004]

I too had both test perfectly fine but my microwave didn't heat the food so I went to the store and bought a new mag and all's good now

[@prhudy1854]

Yep, same with me. All tests passed on my Samsung and it was still bad. Replaced Mag and all is good.

[@DavidDachauer]

Very helpful. Thank you!

[@mr.fixit3604]

Thank you for watching my videos. I made it for you all. I hope it was useful. don't forget to share with friends & family who might need some help.

[@hapetaa]

Good informative video, thanks for posting.

[@mr.fixit3604]

Glad it was helpful!

[@mr.fixit3604]

Don't forget to share with friends and family who might need some help.

[@skmostaque5697]

Continuity is ok but when with body ground then sowing some reading, can i guess that's called bad ??

[@johnnurutotlashopallelectr6543]

Good job thank you

[@francisg1375]

same with mine guys.. it passed these basic contnuity test for the magnetron but as i replaced the original part it did fix the problem.. this cud be considered just a quick check.

[@mr.fixit3604]

Sometimes a magnetron can give you good reading and then sometimes that same magnetron ain't working good. That's how magnetron is sometimes.

[@jfernandez925]

I have the same tester as you but when I check for continuity, it beeps and says 0 instead of 2. I get a 1 once place the checker on the body like you did.

[@AMPFIXBISTAGTV]

thanks for that, test great

[@mr.fixit3604]

no problem.

[@Deanchanel891]

Mr Fix what causes start button doesn't work

[@dasolpan3194]

Even the test passed on 4 filament pin socket , it does not mean the magnetron is good. If the magnet cracked, the magnetron will not worked. So not only on pin needed to worked on. Try to inspect by visual the magnet and other parts of the magnetron that might loose plate attachment.

[@christopherdowney9548]

Hi good day thank you for this helpful video...where in trinidad sells the cap for the magnetron??

[@mr.fixit3604]

At your local appliance stores or online.

[@PeteerY]

My GE microwave magnetron has continuity between the plugs, and has unmeasurable electrical resistance between any of the two plugs and the case. So from testing continuity point of view it is still good. But the top radiator is loose on both edges. and the microwave does not produce heat when this magnetron is inserted. So I guess a not-well-connected radiator could be the Culpit. Anyone has any idea about this? Thanks.

[@elijahezekielchukwudi8988]

How to change a relay or repair relay and microwave

[@mr.fixit3604]

First you need the correct relay. Then unsoldered the bad relay and install the new relay. But you must be careful when you unsoldering because you don't want to cross solder together.

[@maniksambyal1962]

Thanks

[@mr.fixit3604]

You welcome.

[@fffinga]

I performed the test on the magnetron and the results would suggest that it is fine. I notice NO crack in the magnets either. I have a Panasonic Prestige 1300W inverter microwave oven. The issue was that it would chip the breaker after 2-3 secs. The switches tested fine. If I disconnect the magnetron from the inverter board microwave does not chip out. Once I connect it the issue occurs again. Any insight?

[@mr.fixit3604]

Hi. the thing with them Panasonic Microwave Inverter Oven. is that the circuit board components does be the problem. some of the components does go bad causing the breaker to trip. try plugin on another microwave on the same plug. you will see the breaker will not trip. but if the breaker trip is because the plug is over loading causing the breaker to trip. I hope this answer your question. if not feel free to comment.

[@fffinga]

@@mr.fixit3604 Thank you

[@mr.fixit3604]

no problem. let me know if the breaker trip when you run plug on another microwave ok.

[@mr.fixit3604]

kzbin.info/www/bejne/aKDPmGCgr8x5eq8

[@mr.fixit3604]

Check out that video .

[@manuelpasillas9662]

Can you make a video testing the transformer ?

[@mr.fixit3604]

ok when i get time.

[@KobusBreed]

It's not a WI-Fi symbol, it's a diode and audible sound symbol, meaning you will get a audible sound when testing diodes, transistors etc.

[@theodoreperez8267]

Good job 👍

[@mr.fixit3604]

Thanks dude. Don't forget to share with friends and family who might need some help.

[@ihtsarl9115]

wow you discovered the hot water!

[@Deanchanel891]

Mr Fix can I use the analog avo meter to test

[@mr.fixit3604]

Yes only for continuity.

[@nev.paulpere]

Can a bad magnetron blow the fuse?

[@mr.fixit3604]

Yes it can.

[@djskitzo4875]

How do u test a capacitor to know if its good?

[@mr.fixit3604]

To test a high voltage capacitor, you need a high voltage capacitor tester.

[@grenzhochspannungshindernis]

first discharge your capacitor and then: kzbin.info/www/bejne/lavInqysnph4hac

[@nestornieves9822]

Microfarads

[@cecilaqui]

Where can I buy a replacement magnetron in T&T?

[@mr.fixit3604]

At your local appliances store or online.

[@MaathiYosi1962]

What is that FA and F found on magnetron? Can I change the connection?

[@mr.fixit3604]

The FA side of the magnetron is connected to the side of the high voltage capacitor with the rectifying diode which is then grounded. and the F side of the magnetron is directly connected to center winding of the transformer which is thin and small.

[@MaathiYosi1962]

@@mr.fixit3604 thank you so much....

[@saupham8192]

Very good the answer, if the connection reversed ,what is the problem for the magnetron. Please answer. Thanks

[@yahoofren4917]

Sir..you should show us the ohm reading also sir

[@mr.fixit3604]

In another video I'll show the ohm reading. must not teach everything at once. reason not everybody learn fast and the video will be longer to teach everything in one video.

[@don-kellyrichard8361]

Can it be repaired?

[@mr.fixit3604]

No. Is best that you replace with new magnetron.

[@car9167]

My magnetron checks ok based on your tests but there were spark between the microwave case and the copper cover on top of the ceramic pink head. And there is continuity between that copper cover and the case

[@mr.fixit3604]

It mean the tip of the magnetron is burning out. so you will have to replace it as soon as possible.

[@car9167]

@@mr.fixit3604 Yeah I replaced it with a new one and it works fine.

[@mr.fixit3604]

@@car9167 great you good to go.

[@ogagauthevarie5452]

Can a magnetron pass both test and still be bad?

[@mr.fixit3604]

No it can't.

[@maniksambyal1962]

Love from INDIAN. technician

[@mr.fixit3604]

Right back at you.

[@spicky2966]

Price of that Magnetron pls

[@mr.fixit3604]

Not sure what is the price but online is don't cost more than a microwave.

[@elijahezekielchukwudi8988]

If I put microwave on after 2 seconds it off

[@mr.fixit3604]

What is off the power on the microwave.

[@MUHAMMADKHAN-pe7ez]

no continuity on body on both parts. so both are good

[@mr.fixit3604]

If you get a continuity from terminal to body then the magnetron is bad.

[@stupersyn1]

Does the magnetron need to be removed from the microwave for this test?

[@mr.fixit3604]

I like this question. NO it don't have to be remove for testing. But! is best you remove the magnetron from the microwave cavity so you can inspect it for any damage like the magnet for cracks or burn on the Antenna RF output and stuff.

[@stupersyn1]

@@mr.fixit3604 Thanks for the reply. Yes, I wasn't sure if it was grounded to the frame and would mess up the multimeter test somehow. Mine had continuity between the leads. Turns out the insulator was faulty. Very subtly discolored and bulging. I ripped it completely a part, (avoiding the dangerous chemical) before I realized it.

[@danreynolds8028]

1:05 It's not a WiFi signal, it means AUDIO continuity test.

[@jayres6372]

that is actually the symbol for a diode

[@bottlekruiser]

@@jayres6372 the "wifi" symbol next to the diode

[@carminemarra2854]

Non si capisce niente come provare un magnetron.

[@mr.fixit3604]

You can try another magnetron but make sure it the same value and connection.

[@Tube069]

Too hard to understand because of the thick accent.

[@manuelr7121]

cool

[@mr.fixit3604]

Thanks. Don't forget to share with friends and family who might need some help.