Heil Quaker ICP 1177927 Defrost Board 320788-703 This model is the direct

This model is the direct replacement for AG13U230

a full unit replacement is required to maintain system calibration

While modules are available

Direct 115V Operation: Plugs directly into existing wiring harnesses with standard 115-volt industrial-grade connections

Always verify the part number on your existing switch before installation

Heil Quaker ICP 1177927 Defrost Board 320788-703 This model is the directThe 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