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I have a model 401.80082700 serial 725MM00044. Intermittent problem. Microwave goes through heating cycle and then totally powers off…no display, no light, no power. After 15-30 seconds the display comes on and instructs to press clock and reset time of day. After doing so the microwave is fully functional and may operate several times before powering off again. Occasionally the display appears fainter than normal, esp the center of display. I have replaced the door switch assembly but after several days the intermittent problem has returned. What do you think? TY
Sounds like the problem is the control board, not the door assembly. Try replacing the main controller circuit. Good luck!
There are two parts to that door switch, here they are on your model along with how to test them: https://www.repairclinic.com/RepairHelp/…
