Ge WB27X10985 Sensor OEM Part

At first I thought it was the supply fuse. Multimeter proofed otherwise. Manufacture schematic outlined the most probable cause the cabinet flame sensor. I bypassed the thermostat fuse sure enough that was the problem.

At first I thought it might be the fuse. While cleaning the inside dust accumulation the light bulb flickered on (yes, I know I should have unplugged the unit first). As I was wiggling wires I noticed a melted wire and connector to a sensor on the inside top of the microwave. I went on line, found the exact replacement at AppliancePartsPros.com. Ordered it with a very quick arrival of 2-3 days. Cut the wires and put new crimp connectors, inserted the sensor, plugged the wires, and for $25.00 the microwave was functional. A few minutes work and savings of over $100. Great day in the DIY world.

Replaced sensor and svaed the cost of a new microwave for $26 total.

Microwave ovens are not magic. Most manufacturers won't tell you how to trouble shoot them. Basic safety procedures are a must. Once the unit is unplugged and the capacitor is discharged you can check internal parts safely. Basic tools are needed and a volt meter. Look for obvious failures first. Check the main fuse. Check for loose connections and burned connectors. In my case the failure was obvious. The thermal fuse connection had come loose. The thermal fuse had cracked and come apart. I replaced the thermal fuse and the oven works properly again. The repair took about 10 minutes. The part cost about twenty bucks.

Replacing the sensor, likely took about 45 minutes total.