Bill M Floresville , TX December 14, 2020 Would not come on after defrost. It would turn on for a moment and then go off. Replaced the inverter board and the main controller. The fridge came right up after that. The boards that AppliancePartsPros.com sent were official Samsung boards, they fit exactly with no issues. Shipping was reasonable for next day service Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes