121-160

This premium HVAC fan and high-limit control switch is a vital safety and operational component for forced-air heating systems. Engineered to monitor internal furnace temperatures, this dual-function controller regulates the blower fan's activation and provides critical overheat protection. The 5-inch probe accurately senses air temperature, ensuring the system operates within safe parameters by automatically shutting down the heating element if temperatures reach the 230°F limit. Ideal for furnace repair and routine HVAC maintenance, this switch helps prevent heat exchanger damage and ensures consistent airflow and home comfort. If your furnace is short-cycling or the blower fan fails to engage, replacing the fan limit control is a common solution to restore reliable heating performance.
Type: Fan and High Limit Control Switch
Size: 5-inch insertion depth
Dimensions: 5 inches (probe length)
Application: Forced-air furnaces, residential heating systems, and commercial HVAC units requiring a high-temperature safety cutoff and fan regulation.
Specifications: High-limit temperature setting: 230°F; Control type: Combined Fan and Limit; Probe length: 5 inches; Function: Safety cutout and blower motor activation.