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It makes a really loud noise when I turn it on I already
Tested the magnetron and transformer and they’re ok so what else do you guys think could be causing the noise ?

Model Number
JNM3163RJ3SS
What have you tried so far?

I’ve already tested the magnetron and the transformer and they’re ok. What else could be causing the noise?

Request Resource Materials
Service diagnostics guide, Job aids, Videos, Any available materials
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It could be one of the fan motors or the turntable motor. You can usually turn the turntable setting off which would verify if it’s that or not. Magnetrons and Transformers will both make loud humming noises when they fail but you usually will not be getting any heat when this happens. Transformers will usually also have a bad smell to them like an electrical smell when they are bad. There is no positive way to test a magnetron. Most of the time they test good when they are faulty

    • Guest
    • 4 years ago
    Ok thanks brian for the good advice I’ll check it out
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