OEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG030000BCAA

The Carrier HK32EA001 Defrost Control Board is the factory-specified replacement for the PH4ANG030000BCAA heat pump. This board receives and interprets signals from outdoor sensors and the thermostat, then commands the reversing valve to switch from cooling to heating mode during the defrost cycle — clearing ice buildup from the outdoor coil. When this board fails, common symptoms include the outdoor unit icing over completely, the heat pump failing to defrost on schedule, short-cycling, or the system getting stuck in one operating mode and never transitioning properly between heating and cooling.

• Specs: OEM Part # HK32EA001 | Also cross-references CEPL130524-01, CEBD430524-06A | 24V control voltage | 5A | 1-Phase | Dimensions approx. 6" × 4"
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact factory tolerances. OEM boards preserve full system diagnostics, fault code accuracy, and warranty integrity — generic alternatives risk sensor miscalibration and premature defrost cycle failures.
• Install difficulty: 3/5 — Shut off power at the disconnect before opening the control panel. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera for photographing all wiring harness connections before removal. Label each connector carefully; incorrect wiring can damage the new board.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier PH4ANG030000BCAA heat pump split systems. Verify part number HK32EA001 on your unit's existing board or data label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.