When you start the oven the microwave will make a loud noise and blow the 20 amp fuse inside the microwave. Replace the fuse and all is well until you start the oven again. The clock, fan, lights, and number pad all works ok until you start the oven. The microwave will blow the fuse. All is dead again. Thanks, John Bohannon

Hi. I am very sorry for that. I must answered this incorrectly because i am solving another issue. My apologies. As in your case the fuse keeps on blowing, there are couple of things that you will have to do fix it:

The problem your describing is most likely a cap problem. The
transformers operate in saturation and therefore it's not likely to
blow out the diode. The transformer is essentially energy limiting.

The capacitor or diode may be bad. Discharge the capacitor as described
earlier in the article. Test the capacitor by removing the leads and
setting the VOM to RX100. Probe the terminals. The reading should start
in the low ohms and increase toward infinity. Reverse the probes and
re-test. The reading should do the same thing. If not, it's bad. To
test the diode, disconnect the diode from both the appliance and the
capacitor. With the VOM set to RX100, probe the wires. Then reverse the
probes and read again. You should get infinity for one reading and low
ohms for the other reading. If not, replace. Another cause could be a
faulty magnetron, but due to the sensitivity of that piece, it's best
left to a professional.

http://www.doityourself.com/stry/repairm... Hi. I am very sorry for that. I must answered this incorrectly because i am solving another issue. My apologies. As in your case the fuse keeps on blowing, there are couple of things that you will have to do fix it:
The problem your describing is most likely a cap problem. The transformers operate in saturation and therefore it's not likely to blow out the diode. The transformer is essentially energy limiting.
The capacitor or diode may be bad. Discharge the capacitor as described earlier in the article. Test the capacitor by removing the leads and setting the VOM to RX100. Probe the terminals. The reading should start in the low ohms and increase toward infinity. Reverse the probes and re-test. The reading should do the same thing. If not, it's bad. To test the diode, disconnect the diode from both the appliance and the capacitor. With the VOM set to RX100, probe the wires. Then reverse the probes and read again. You should get infinity for one reading and low ohms for the other reading. If not, replace. Another cause could be a faulty magnetron, but due to the sensitivity of that piece, it's best left to a professional.
http://www.doityourself.com/stry/repairmicrowave

This angelo_mic guy is an *******. He should be banned from responding on this board. He's gonna get someone killed with his joke instructions. This angelo_mic guy is an *******. He should be banned from responding on this board. He's gonna get someone killed with his joke instructions.