
Heil Quaker ICP 1173425 Control Board
The Heil Quaker ICP 1173425 Defrost Control Board is a critical OEM replacement component designed to manage the defrost cycle for heat pump systems. This ICP defrost control board serves as the central logic unit, monitoring input from liquid line thermistors and coil sensors to prevent evaporator icing during low-ambient heating operations. Engineered for high-stress environments, this HVAC circuit board coordinates the reversing valve solenoid, outdoor fan relay, and auxiliary heat terminals to ensure seamless transitions between heating and defrost modes. As an essential part of the heat pump defrost control sequence, the 1173425 utilizes precise timing intervals?typically field-adjustable for 30, 60, or 90 minutes?to maximize system efficiency and protect the compressor from liquid slugging. This board is a direct replacement for various Heil Quaker and Comfortmaker units, providing a "plug-and-play" fit with standard 24V AC control circuits. For technicians, the integrated test pins allow for manual cycle initiation, making it a reliable choice for restoring reliable performance in residential and light commercial applications.
Key Benefits- OEM Compatibility: Specifically designed for ICP-branded equipment, ensuring exact terminal matching and voltage compliance.
- Cycle Precision: Features adjustable time-temperature logic to prevent unnecessary cycles and reduce wear on the reversing valve.
- Reliable Defrost Initiation: Accurately manages the outdoor fan cutoff and W-terminal energization for supplemental heat.
- Diagnostics Support: Includes dedicated test pins for rapid field troubleshooting and system validation.
- How do I test if the board is initiating defrost? You can bridge the "Speed Up" pins with a jumper while the system is in heating mode to accelerate the internal timer and force a defrost cycle for diagnostic purposes.
- Is this board compatible with other ICP brands? Yes, this ICP 1173425 is cross-compatible with several brands under the International Comfort Products umbrella, including Tempstar, Arcoaire, and Comfortmaker.
- What causes these boards to fail prematurely? Most failures are due to moisture intrusion in the outdoor cabinet, voltage spikes, or loose wiring at the transformer or sensor terminals.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $115.55
-65%$115.55
$40.44Heil Quaker ICP 1173425 Control Board
The Heil Quaker ICP 1173425 Defrost Control Board is a critical OEM replacement component designed to manage the defrost cycle for heat pump systems. This ICP defrost control board serves as the central logic unit, monitoring input from liquid line thermistors and coil sensors to prevent evaporator icing during low-ambient heating operations. Engineered for high-stress environments, this HVAC circuit board coordinates the reversing valve solenoid, outdoor fan relay, and auxiliary heat terminals to ensure seamless transitions between heating and defrost modes. As an essential part of the heat pump defrost control sequence, the 1173425 utilizes precise timing intervals?typically field-adjustable for 30, 60, or 90 minutes?to maximize system efficiency and protect the compressor from liquid slugging. This board is a direct replacement for various Heil Quaker and Comfortmaker units, providing a "plug-and-play" fit with standard 24V AC control circuits. For technicians, the integrated test pins allow for manual cycle initiation, making it a reliable choice for restoring reliable performance in residential and light commercial applications.
Key Benefits- OEM Compatibility: Specifically designed for ICP-branded equipment, ensuring exact terminal matching and voltage compliance.
- Cycle Precision: Features adjustable time-temperature logic to prevent unnecessary cycles and reduce wear on the reversing valve.
- Reliable Defrost Initiation: Accurately manages the outdoor fan cutoff and W-terminal energization for supplemental heat.
- Diagnostics Support: Includes dedicated test pins for rapid field troubleshooting and system validation.
- How do I test if the board is initiating defrost? You can bridge the "Speed Up" pins with a jumper while the system is in heating mode to accelerate the internal timer and force a defrost cycle for diagnostic purposes.
- Is this board compatible with other ICP brands? Yes, this ICP 1173425 is cross-compatible with several brands under the International Comfort Products umbrella, including Tempstar, Arcoaire, and Comfortmaker.
- What causes these boards to fail prematurely? Most failures are due to moisture intrusion in the outdoor cabinet, voltage spikes, or loose wiring at the transformer or sensor terminals.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Heil Quaker ICP 1173425 Defrost Control Board is a critical OEM replacement component designed to manage the defrost cycle for heat pump systems. This ICP defrost control board serves as the central logic unit, monitoring input from liquid line thermistors and coil sensors to prevent evaporator icing during low-ambient heating operations. Engineered for high-stress environments, this HVAC circuit board coordinates the reversing valve solenoid, outdoor fan relay, and auxiliary heat terminals to ensure seamless transitions between heating and defrost modes. As an essential part of the heat pump defrost control sequence, the 1173425 utilizes precise timing intervals?typically field-adjustable for 30, 60, or 90 minutes?to maximize system efficiency and protect the compressor from liquid slugging. This board is a direct replacement for various Heil Quaker and Comfortmaker units, providing a "plug-and-play" fit with standard 24V AC control circuits. For technicians, the integrated test pins allow for manual cycle initiation, making it a reliable choice for restoring reliable performance in residential and light commercial applications.
Key Benefits- OEM Compatibility: Specifically designed for ICP-branded equipment, ensuring exact terminal matching and voltage compliance.
- Cycle Precision: Features adjustable time-temperature logic to prevent unnecessary cycles and reduce wear on the reversing valve.
- Reliable Defrost Initiation: Accurately manages the outdoor fan cutoff and W-terminal energization for supplemental heat.
- Diagnostics Support: Includes dedicated test pins for rapid field troubleshooting and system validation.
- How do I test if the board is initiating defrost? You can bridge the "Speed Up" pins with a jumper while the system is in heating mode to accelerate the internal timer and force a defrost cycle for diagnostic purposes.
- Is this board compatible with other ICP brands? Yes, this ICP 1173425 is cross-compatible with several brands under the International Comfort Products umbrella, including Tempstar, Arcoaire, and Comfortmaker.
- What causes these boards to fail prematurely? Most failures are due to moisture intrusion in the outdoor cabinet, voltage spikes, or loose wiring at the transformer or sensor terminals.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












