Heil Quaker ICP 1177927 Defrost Board 320788-703 a full unit replacement is

a full unit replacement is required to maintain system calibration

Reliable Monitoring: Utilizes advanced probe technology to maintain accurate water level detection even in systems with varying water chemistry

Always verify the part number on your existing switch before installation

While modules are available

you must use a universal backplate (HMO-6036)

Heil Quaker ICP 1177927 Defrost Board 320788-703 a full unit replacement isThe Heil Quaker ICP 1177927 Defrost Board is a critical OEM replacement part designed for International Comfort Products (ICP) heat pump systems, including brands like Tempstar, Comfortmaker, and Heil. This defrost control board utilizes microprocessor technology to manage 30, 60, and 90 minute defrost cycles, ensuring the outdoor coil remains clear of ice buildup during low temperature operations. It effectively orchestrates the reversing valve