The Toyotomi Circuit Lamp Board, part number 20476476, is a replacement electronic display component designed for select Toyotomi and Toyostove water heater models. The circuit lamp board controls and displays heater status indicators, helping users monitor operation, system conditions, and diagnostic signals.
What’s included: one replacement circuit lamp board.
Installation limits: the circuit lamp board must be installed according to the heater manufacturer’s service instructions. Electrical power must be disconnected before servicing, and proper connector alignment is required to prevent damage and ensure reliable operation.
Compatibility: Compatible with Toyotomi and Toyostove OM-148, OM-180, OM-122DW, and OM-128HH water heater models.