SCA1001KSS LG Microwave - Instructions

Found a service manual on-line, and read some blogs that indicted the Thermal Cut Out devices that are basically thermal fuses. I removed the device from over the range, which turned out to be not 100% necessary, but made the repair much easier. Found that the Cavity TCO was certainly burnt, and tested bad with an Ohmmeter. The Hood TCO tested open, so I assumed that device was bad, which turned out not to be true. The TCO's are one shot, so I found PartSelect in a search engine, and entered my product model number. The parts were all clearly identified, so ordering was easy. Replaced the parts, bench tested the repair and re-installed the device. Way cheaper than a service call and I also replaced the long burnt out vanity light. This bulb burnt out in less than a year, but a serviceman had told me that the entire device had to be dis-assembled to replace the part, which is not true. This part can be replaced without removing the oven from the over-the-range mount, as can the three TCO's in the oven.

Removed outer cover and then replaced the T. C. O. located on the left upper side if the unit. Replaced outer cover, tested oven. Oven operates normally.