Eugene C Essex , MD February 02, 2022 Appliance: Whirlpool Microwave Hood Combo WMH53520CS6 Whirlpool Microwave Wmh53520cs6: Whirlpool microwave oven had intermittent "door error" and would not operate. How to replace Spring. Searched Google and found there were updated parts for the bottom door switch. Also found YouTube instructions to install. Installed new parts and fixed the problem. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes