As a core component for modern heat pump and air conditioning systems, the Carrier HK38EA022 Circuit Board serves as the primary defrost control for high-efficiency outdoor units. This OEM control module is critical for maintaining HVAC system performance by managing complex logic for defrost cycles, pressure switch monitoring, and short-cycle protection. Designed for Carrier, Bryant, and Payne residential and commercial units, this board is a direct replacement for legacy part numbers such as HK38EA005 and CEPL130634-02. This allows technicians to perform a seamless furnace control board replacement without modifying the control box or terminal wiring. Engineering features include 24V AC operation, air-cooled thermal dissipation, and high-grade PCB construction to handle HVAC maintenance in demanding environments. For professionals troubleshooting system fault 31 or intermittent pressure switch errors, this factory-authorized part ensures the diagnostic logic remains consistent with original equipment specifications.

• Precise Defrost Control: Utilizes advanced logic to manage outdoor coil temperatures and optimize heating efficiency during low-ambient operation.
• Direct OEM Compatibility: Specifically engineered for Infinity and Evolution series outdoor units, including models 25HNB5, 25HNH5, and 264ANA.
• System Protection: Integrated five-minute short-cycle protector prevents compressor damage during rapid power fluctuations or thermostat changes.
• Advanced Diagnostics: Robust onboard logic supports fault detection for high-pressure and low-pressure switches, streamlining HVAC repair timelines.
• Heavy-Duty Construction: Built with resilient PCB materials designed to withstand thermal cycling and high-load electrical demands.

Is the HK38EA022 a direct replacement for my older HK38EA005 board?
Yes, the Carrier HK38EA022 is the current factory-authorized replacement for original Carrier furnace parts like the HK38EA005. It maintains the same footprint and terminal designations for a plug-and-play installation.

Will this board resolve a recurring System Fault 31?
A Fault 31 typically indicates an open high-pressure switch. If the switch and charge are verified as functional, the failure often lies within the board's internal logic or terminal connections, making this the correct replacement part.

Does this board support communicating (Infinity) systems?
Yes, this module is specifically designed for Carrier HVAC units with communicating capabilities but can be configured for non-communicating systems by following the terminal wiring instructions for R, C, and Y connections.

Item is Non Cancelable / Non Returnable

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.