Les C Glenside , PA September 10, 2020 Appliance: Model LMHM2017SB Bad switch: Microwave motor runs when door opens. I have an LG 2.2 Microwave. It took less than 15minutes to install the new switch that I had ordered. The saleslady was very patient and detailed in identifying the right part. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes