543-507

This 8-inch Fan and Limit Control is a vital safety and operational component for forced-air heating systems. Engineered to monitor and regulate furnace plenum temperatures, it provides precise control over blower motor activation and deactivation. The adjustable temperature settings allow for customized fan cycles, improving energy efficiency and home comfort. Beyond air circulation, this part functions as a high-limit safety switch, protecting your HVAC system from overheating by interrupting the burner circuit if temperatures reach a critical threshold. Whether you are performing routine furnace maintenance or repairing a non-responsive blower, this durable fan and limit switch ensures reliable performance and safe operation for your residential or commercial heating equipment.
Type: Fan and Limit Control Switch
Size: 8-inch Probe
Dimensions: 8 in
Application: Forced-air furnaces, residential heating systems, and commercial HVAC units requiring plenum temperature regulation and high-limit safety protection.
Specifications: Adjustable fan-on and fan-off temperature settings; integrated high-limit safety cut-out; designed for furnace blower motor control and system overheating prevention.