• ** REMEMBER! **The microwave can still shock you even unplugged!!

    ALWAYS discharge the high-voltage capacitor first if you even think your hands will come close to any HIGH VOLTAGE components.

    Jeff mentions this: Anything in the high voltage ( magnetron, capacitor, diode, wires to and from ):
    ...Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it.

    From Jeff's site: http://www.applianceaid.com/component-testing.php

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ME18H704SFS Microwave does not turn on


Premium Member
Jan 25, 2017
Chicago, IL
Model Number
Ok, when you close the door the display (time) flashes on for a moment then off. The controls/keypad does nothing. I am thinking new control board for sure and maybe a door switch? It was working properly 1.5 weeks ago. Any help would be much appreciated.
Check the door switches for continuity by opening and closing the door. Always remove at least one wire from the switch when checking for continuity. If the switches check good, Take the control board out and visually inspect the board. When the display turns on for a moment it usually means there's a broken solder joint somewhere or a broken trace. If you can't find it you'll need to replace it:
DE92-03624B Assy Pcb MAIN
Thanks again Rick. I plan to purchase a control board and switch, and return if I can find the problem. Andy
Oh, I did not know that. All the same switch? Also, if one is not working, would that interfere with the controls, and display?

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