Heat Controller 17123000A03565 OEM Replacement HVAC Control Board

The Heat Controller 17123000A03565 is a genuine OEM replacement control board designed to restore full functionality to compatible Heat Controller HVAC systems. As the electronic brain of the system, the control board manages core system operations, coordinates communication between components, and oversees critical safety functions to ensure reliable, efficient performance.

Key Features:

• Genuine OEM replacement part manufactured to original Heat Controller specifications
• Manages system operations including heating, cooling, and safety monitoring functions
• Ensures accurate communication between HVAC system components
• Direct drop-in replacement for failed or damaged control boards in compatible units
• Engineered for long-term durability and reliable performance in residential and commercial HVAC applications

Heat Controller, Inc. — founded in 1933 and headquartered in Jackson, Michigan — is the parent company behind the Comfort-Aire and Century brands, and is now part of the MARS family of HVACR products. Replacing a faulty control board with this OEM part ensures your system returns to proper operating condition without compromising performance or safety.