Heil Quaker ICP 1003175 Limit Switch or a failing blower motor

or a failing blower motor before replacing the B1370191 sensor

while the secondary 24V side features the two screw terminals for easy thermostat wire landing

Always inspect the surrounding insulation and sealing compounds during installation to ensure a gas-tight seal and optimal condensing boiler performance

Durable Solenoid Design: The red 24vac coil is built to withstand high-ambient temperatures found in outdoor condenser units without winding degradation

System Stability: Facilitates coordinated action between motors and valves by ensuring consistent signal flow from thermostats and sensors

Heil Quaker ICP 1003175 Limit Switch or a failing blower motorThe Heil Quaker ICP 1003175 Limit Switch is a critical safety component designed for high performance temperature regulation in residential and mobile home furnace applications. Engineering specifications define this as an L150 30F limit switch, meaning it is set to open the circuit at a fixed 150F high limit threshold and features a 30F differential for automatic reset. This OEM replacement part is essential for preventing heat exchanger damage by