How to test a good and bad microwave oven Magnetron 

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.

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

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.

Thanks... This Video was very helpful

Very helpful. Thank you!

Good informative video, thanks for posting.

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.

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

Good job thank you

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.

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.

thanks for that, test great

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

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.

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?

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.

How to change a relay or repair relay and microwave

Mr Fix can I use the analog avo meter to test

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

Thanks

wow you discovered the hot water!

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

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

Can a bad magnetron blow the fuse?

Can you make a video testing the transformer ?

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

Love from INDIAN. technician

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

Can it be repaired?

If I put microwave on after 2 seconds it off

Can a magnetron pass both test and still be bad?

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

Price of that Magnetron pls

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

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

Good job 👍

Non si capisce niente come provare un magnetron.

cool

Too hard to understand because of the thick accent.