Thomas C Morehead , KY December 24, 2023 Appliance: LG Electric Range LRE3083SB/00 Lg Range Lre3083sb/00: F9 no heat in oven. How to replace Power Control Board Assembly. Bought a new PCB and installed it. Perfect fit and the oven seems to be fine now. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours