The LED will flash a specific pattern indicating the failure mode

Durable Construction: Engineered to withstand the high ambient temperatures found in HVACR burner compartments

Complete Component Set: Includes necessary gas burner orifices and valve regulator springs for a full system recalibration

This 3/4 HP blower motor operates on a 208/230V single-phase power supply

Carrier HH18HV145 Limit Switch 328140-751 The LED will flash aThe Carrier HH18HV145 is a high precision HVAC auto limit switch engineered to maintain safe operating temperatures within gas and electric furnaces. Operating with a 115 145F temperature range, this genuine OEM replacement part acts as a critical safety barrier, automatically interrupting the circuit to the burners or heating elements if the supply plenum exceeds the 145F threshold. This auto reset limit switch is designed for demanding industrial