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Microwave won't power on or turn on? Failed thermostat causes complete power loss. This safety part protects against overheating. DIY repair in 30 minutes.
I attempted to diagnose the four thermostats/thermal switches in the microwave....two right behind the control panel, one on top of the cooking cabin, and one under a metal shroud above the magnetron. While checking continuity with a voltmeter, i questioned one of them behind the control panel and the one above the magnetron. I then noticed a burn mark on the plastic connector sleeve for the one above the magnetron. I took a scrap piece of 14 gage copper wire and beat the ends flat with a... Read more
Microwave won't turn on or has no power? A blown fuse is often the cause. This safety component protects against electrical surges and short circuits.
I have a Jenn-Air microwave that didn't turn on and had no lights. It just stopped working completely. I unplugged the unit and had to remove the rear cover using a *security screw kit* that prevents people from opening the rear panel. Once opened, I removed the fuse and testing it with an OHM reader to determine that the fuse went bad. But I also had to determine why the fuse blew and noticed a sticky oily substance under the Capacitor. I used a rubber glove and needle nose pliers to... Read more
Microwave won't heat or is completely dead? A failed thermal cutoff thermostat often causes no power or heating. DIY repair in 30-45 minutes.
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Microwave has no power or won't start? A faulty cavity thermostat often causes complete shutdowns. This part restores temperature control in 5-10 minutes.
Microwave won't power up or shuts off after seconds? Failed thermostats cause intermittent operation. Test for continuity—straightforward repair.
Removed OTR microwave. Checked the thermostat switches while power was applied with a DVM. Noticed that when a certain set of wires was moved the slightest bit the microwave would power up. Traced the wires to the thermostat switch for the cavity. Noticed that where one (of two) Faston terminals was crimped to the thermostat switch was black. (should be copper colored). That is a sure sign of arcing from a loose connection. Since the specification for the switch was to trip at 248F degrees... Read more
This 15 amp, 250 volt replacement fuse protects your appliance's electrical circuits by interrupting power when a fault or overload occurs. It restores safe operation once the underlying issue is fixed and the fuse is replaced. What it does:
Usually ships within 4 - 14 days