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Melted Connection Between H.V Transformer and Magnetron
Rank: Member
Groups: Registered
Joined: 6/14/2021(UTC) Posts: 0
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Need help troubleshooting power but no heat for this model. Unit would power on and makes a noise as if the magnetron is powered but it does not deliver heat.
I have tested the following components: 4 T.C.Os, 2 fuses, door switches, magnetron reads correct resistances, high voltage transformer reads correct resistances, H.V capacitor is not shorted between leads or leads and ground. H.V diode shows a good voltage drop and open when reversed.
The only strange things i've noticed are one of the wires connecting the h.v transformer to the magnetron was melted/burned at the connection point. additionally when measuring the internal resistor on the h.v capacitor my multimeter showed a very high value momentarily and then showed open, not sure if this is simply because the internal bleed resistor is such a high value. Please help, any info is very appreciated. thanks
[img=https://photos.google.com/search/_tra_/photo/AF1QipNFs8MmaykMPejpMe6TTb1GXLMwu8B59Vu-eEqL]burnt connection[/img]
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Rank: Advanced Member
Groups: Expert
Joined: 7/27/2010(UTC) Posts: 1,395 Location: near the middle of nowhere Was thanked: 24 time(s) in 24 post(s)
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Pic won't work. Magnetrons can test OK and still not work. Did you try replacing the burnt connector?
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Melted Connection Between H.V Transformer and Magnetron
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