If your boiler displays a "Burner Door Temp" fault or fails to ignite despite a call for heat

it is best practice to install it horizontally with the stainless steel strainer accessible for periodic cleaning to maintain optimal GPM flow rates

while the NEMA 4 enclosure provides watertight protection for both indoor and outdoor environments

Efficient Field Service: Simplifies repairs with a direct-fit 9-pin connector setup

Heil Quaker ICP R02R003 Limit Switch Els PW 17895 If your boiler displays aAs a field tech, you know that a failed high limit switch is often the first symptom of deeper airflow issues in a furnace. The Heil Quaker ICP R02R003 Limit Switch is a critical safety component designed for International Comfort Products (ICP) equipment, including Heil, Quaker, and Tempstar systems. This OEM replacement part is engineered for a 165 195F temperature range, featuring an auto reset mechanism that opens the circuit when the heat