GE Microwave Turns Itself On? Repair Help

[@robertwellborn6582]

I appreciate this video instruction. It works perfectly for me and the repair I have to make.

[@bmsay2]

My microwave runs and will not shut down. It runs while closed . I switched out the primary and secondary switch. Still having the same problem.

[@barryburke5782]

Barry Burke 1 week ago My GE Profile Microwave worked for about 5-7 seconds then shut off. Further exam revealed burning/sparking in HV Inverter/Transformer. Digital continuity checked OK for all door switches, primary thermostat, shut off fuse, etc. Replaced Transformer with new part. Everything worked fine except 'No Microwave Heating'. Next, replaced Magnetron and Relay Switch on the circuit board. Everything worked fine except 'No Microwave Heating'. Magnetron humming seems normal! Cleaned mica wave board inside of unit, no sparking here. Can anyone advise what the problem may be. Again, everything worked fine including settings for time, power levels, clock, etc. when started up except 'No Microwave Heating'. Last resort before dropping out to the curb for the landfill! Any ideas greatly appreciated! HELP! Show less Reply Read more Reply