David B Wakefield , RI November 18, 2025 Appliance: Whirlpool Microwave/Hood Combo WMH31017HZ08 Whirlpool Microwave/Hood Combo Wmh31017hz08: Would not turn on and light would not shut off. How to replace Electronic Control Board. Replaced control board Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes