I have kitchenaid over the range microwave. Mircrowave works fine but looks like fan is not turning on with microwave. I noticed food get heated. Any help ?
Which fan - exhaust fan or cooling fan?
Gene.
Cooling fan. The fan which turn on with microwave.
Remove the cooling fan (#14 on the diagram). The disassembly instructions are in the Service manual.
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[LEFT]Using an external 9 or 12 DC voltage source, connect to fan wires: red (R) wire to “+” and black (BK) wire to “-”.
If it does not work, replace the fan.
If it does work, replace the control board.
Here are the breakdown diagrams and Replacement parts for WHIRLPOOL KHHS179LSS5 Microwave Hood Combination | AppliancePartsPros.com
Gene.[/LEFT]
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Gene
Thanks. Got fan last week and installed it. Microwave is working now. Thanks again