OEM Carrier Defrost Control Board HK32EA001 for Model PH3ANA018000BAAA

This is the factory OEM defrost control board for the Carrier PH3ANA018000BAAA heat pump. The defrost control board manages the automatic defrost cycle, receiving signals from defrost sensors and commanding the reversing valve and outdoor fan to temporarily shift the unit into cooling mode to melt frost buildup on the outdoor coil. When this board fails, your heat pump may run continuously in cooling mode, refuse to defrost, or cycle erratically — leaving your home without adequate heat during cold weather. Board cross-references include CEPL130524-01 and CEBD430524-06A.

• Specs: 24V control voltage | 5A amperage | Single-phase | OEM part number HK32EA001 | Factory Authorized Parts (FAP) replacement
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — engineered to exact tolerance for the PH3ANA018000BAAA platform. Generic boards may lack proper defrost timing calibration, risking compressor damage from uncontrolled ice buildup.
• Install difficulty: 3/5 — Disconnect power at the breaker before servicing. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone/camera for wiring photos. Photograph all connector positions before removal. The board mounts in the outdoor unit's control compartment and all connectors are keyed for correct reinstallation.
• Warranty: 1-year OEM factory warranty on this Factory Authorized Part. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH3ANA018000BAAA heat pump. Also fits select Carrier, Bryant, and Payne heat pump models including 38YCG060, 38YCG036, and 538BNR024000BAAA series. Always verify your OEM part number on your unit's data plate or existing board before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.