The Toyotomi Main Circuit Board, part number 20476512, is a replacement electronic control board designed for the Toyotomi OM-180 vented heater. This circuit board manages core operating and safety functions within the heater, helping restore normal operation and reliable performance when the original board is damaged, malfunctioning, or non-responsive.
What’s included: one replacement main circuit board.
Installation limits: the circuit board must be installed according to the heater manufacturer’s service instructions. The heater must be completely powered off before service, and all wiring connections must be reinstalled exactly as specified to prevent damage and ensure safe operation.
Compatibility: Compatible with Toyotomi OM-180 vented heater models.