Carrier HH18HA281 Temp Switch 326070-701 Durable Stainless Construction: Withstands high-temperature

Durable Stainless Construction: Withstands high-temperature flue gases and acidic combustion byproducts without degrading

the motor features a robust mechanical design that matches the 5A145-40 BAY reference specifications

What are the signs of a failing hot surface ignitor

Simplified Installation: Factory-cut components reduce field modification time during emergency heating system repair

Use a multimeter set to microamps (µA) in series with the sensor wire

Carrier HH18HA281 Temp Switch 326070-701 Durable Stainless Construction: Withstands high-temperatureThe Carrier HH18HA281 is a precision engineered Defrost Temp Switch designed for high performance residential and commercial HVAC units. As a critical fixed temperature thermostat, it monitors coil temperature to initiate and terminate defrost cycles, preventing ice buildup on the outdoor coil. This OEM Carrier replacement part features a snap acting bimetal disc that ensures rapid response and reliable contact closure under extreme thermal