Toyotomi Main Circuit Board

The Toyotomi Main Circuit Board, part number 20478512, is a replacement electronic control component designed for select Toyotomi and Toyostove vented heater models. This main circuit board manages heater operation functions including ignition control, safety monitoring, and system communication to ensure reliable and safe heater performance.

What’s included: one replacement main circuit board.

Installation limits: the circuit board must be installed according to the heater manufacturer’s service instructions. Electrical power must be disconnected before servicing, and proper handling of electronic components is required to avoid damage from static discharge.

Compatibility: Compatible with Toyotomi and Toyostove Laser 56 (F & I), Laser 73 (I & L), Laser 60AT, and Laser 73AT vented heater models.

• Replacement main circuit board for Toyotomi vented heaters
• Controls ignition, safety systems, and heater operation
• Supports proper startup, shutdown, and fault monitoring
• Critical component of the heater’s electronic control system
• Direct-fit replacement for compatible Toyotomi models
• Used during electronic diagnostics and control repairs
• Genuine Toyotomi component for proper fit and dependable operation

Proper circuit board operation is essential for safe heater startup, shutdown, and fault protection.