Microwave not heating, working otherwise

ApplianceWhirlpool Microwave


Level of DifficultyEasy

Time to do repair30 - 60 mins

Age of Appliance1 - 4 years

Tools Screw drivers

Keith From Chandler, AZ

Jan 18, 2010

26 out of 32 people found this instruction helpful

This was an over-the-range microwave/hood, so the replacement parts were significantly cheaper than buying a new unit.

Take microwave down (really a two-person job). Remove microwave cover (about 20 philips screws), discharge HV capacitor by shorting terminals to microwave case. Take photos before pulling anything apart. Remove plastic ducting covering part of the magnetron (3 philips screws). Remove old magnetron (4 Torx screws), need to disconnect small thermostat on side (2 philips screws) and replace with new magnetron. Replace HV diode (screw on one end, other end simply plugged into capacitor terminal). Put everything back together and it works fine.

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability


Part Number: PS2342193

On Order

H.V. Diode (Now subbed to DIODE)

Part Number: PS5136042

In Stock