Dan C Arcata , CA March 20, 2022 Appliance: Whirlpool Microwave Hood Combo WMH76719CS5 Whirlpool Microwave Wmh76719cs5: Microwave indicated door needed to be closed, when it was already closed. It would not run and gave open closed error. How to replace Switch. Replaced all three door switches in microwave since I did not have the technical expertise to troubleshoot which one or ones were faulty. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours