Carrier HH18HV135 Limit Switch 326070-701 Enhanced Efficiency: Electronically Commutated Motor

Enhanced Efficiency: Electronically Commutated Motor (ECM) technology significantly reduces watt consumption during continuous fan operation

also identified as the WVFX-40

this square drive ratchet is a durable alternative to standard wrenches

A cracked porcelain insulator on the Direct Spark Electrode often causes the spark to arc to the chassis instead of the burner

keeping labels legible under heavy use

Carrier HH18HV135 Limit Switch 326070-701 Enhanced Efficiency: Electronically Commutated MotorThe Carrier HH18HV135 Limit Switch is a critical OEM replacement part designed for high limit thermal protection in residential and commercial HVAC systems. This disc style sensor features a normally closed (NC) configuration that triggers an open circuit at 135F to prevent heat exchanger damage or unsafe operating conditions. Once the temperature drops to 110F, the automatic reset capability restores the circuit, ensuring continuous system operation