Vince S Allergen , MI April 01, 2021 Flashing light, would not start, no error codes After troubleshooting with tech support, they said I needed a new control board. I ordered and replaced it, still being a bit concerned. However, that fixed my problem. Thanks a bunch! Read More... Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Nut Drivers, Screwdrivers