Question about Whirlpool GH4155XP Microwave Oven

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1994 Whirlpool Microwave Mod MH7115XBQ-2

This is my mom's microwave, working fine for 13 years, today it has no power. There is power to the outlet, but nothing on the display. Can anyone tell me if there is a fuse to check, or perhaps secondary transformer voltage? I guess she's lucky for a microwave to run trouble-free for this long, hopefully longer if there is a possible easy fix (or something easy to check before we put the microwave on the curb). Thanks all, Matt

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  • Anonymous Dec 12, 2007

    I have the same model microwave, mh7115xbq-2, and sometimes it has power and other times it automatically on its own, it puts the exhaust fan on and the night light on. I don't know what the problem is, it goes from having no power to all the lights on the display blinking, I don't know if it's a short in the microwave or a problem with my electricity. Please helf

  • Anonymous Oct 25, 2008

    i have

  • ronsahota Oct 25, 2008

    i have a whirlpool mircowave oven it has no power. i've checked the high voltage cap, transformer,diode and replaced the fuse. i've checked all the parts in the troubleshooting guide which came with he oven. could the front

    panel cause this problem. please advise..





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You can find exploded view diagrams and order parts here: The most likely causes are: diagram 5, ref. 5 fuse diagram 7, ref. 2 thermistor diagram 2, ref. 5 control board If it's a problem with the control board, we repair them nationwide for $32.50. We also have important safety and disassembly information we recommend:

Posted on Feb 04, 2007


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