My Frigidaire microwave does not heat. It turns on but has a loud noise. I was told to replace the magnetron which I did. It still will not heat. The noise is still there also. Can you help?
Answer Hello Tony,
If the noise is a low frequency growl, the issue is most likely a bad high voltage transformer 5304467692. You should also look closely at the high voltage diode 5304467670 and high voltage capacitor 5304467671 since a fault in this circuit can adversely affect the other components in the circuit.