Carrier 6231528030 Circuit Board 318973-401 the FM1D20A-AV is the current

the FM1D20A-AV is the current functional replacement

This specific model (70-101087-81) does not include the pilot tubing port

Prioritize this genuine factory part to ensure long-term mechanical integrity and avoid the common pitfalls of improper blade alignment found in aftermarket alternatives

This HVAC venter motor mount is manufactured by Nortek Global HVAC to original factory specifications

Carrier 6231528030 Circuit Board 318973-401 the FM1D20A-AV is the currentThe Carrier 6231528030 Circuit Board is a critical HVAC control board engineered for high precision management of residential heating and cooling systems. As a genuine Carrier OEM part, it is designed for direct compatibility with specific Carrier, Bryant, and Payne air handlers and furnaces, ensuring seamless integration with existing system wiring and communication protocols. This furnace control board replacement serves as the central processing