The Toyotomi Circuit Main Board, part number 20471112, is an OEM electronic control board engineered to manage core heater operations, safety logic, and system communication, ensuring reliable startup, controlled combustion cycles, and proper heater functionality across multiple Toyotomi oil heater models.
What’s included: One (1) Toyotomi main circuit board.
Installation limits: Intended for replacement use only during heater service; installation should be performed with electrical power disconnected and in accordance with manufacturer wiring and mounting procedures.
Compatibility: Compatible with Toyotomi L301, L302, L531, and L532 oil heater models using main board part number 20471112.