Question about Whirlpool GH4155XP Microwave Oven
I have an older model (RM278BXV) Whirlpool microwave that matches the oven. I don't want to replace it if there's a fix. Everything runs on the microwave, but it doesn't heat at all. Any idea if there's an easy fix? I think Sears keeps parts for 20 years on their stuff (Whirlpool). Thanx!
The most common causes for a lack of heating are a bad door switch, a loose connection on the magnetron, a bad magnetron, bad connection on the control circuit board, a bad relay on the board, bad high voltage diode, or bad high voltage transformer. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383
Posted on Sep 28, 2007
Check the magnetron and related circuit and high voltage fuse and high voltage diodes, etc..
Posted on Sep 25, 2007
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