David T Simpsonville , SC December 01, 2023 Appliance: Whirlpool Microwave KMBS104ESS01 Whirlpool Microwave Kmbs104ess01: LED display on microwave was not working properly. How to replace Microwave Electronic Control Board. Replaced the electronic control board and attached LED display. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes