it also provides a primary seal for 3 and 33 series liquid drainers and air vents

This genuine OEM furnace limit switch is engineered with a 250°F fixed open temperature to prevent overheating within the heat exchanger and blower assembly

Its robust design handles high-frequency cycling

Depress the manual override socket on the actuator face

Ensure the seating surfaces are clean of debris before installation

Heil Quaker ICP 1003176 Limit Switch it also provides a primaryThe Heil Quaker ICP 1003176 is a critical OEM replacement limit switch designed for HVAC furnace safety and temperature regulation. Developed for high reliability performance in International Comfort Products (ICP) residential heating units, this auto reset limit switch monitors internal plenum temperatures to prevent heat exchanger damage and hazardous operating conditions. With an operational range of 100 120F, this bimetal furnace sensor