OEM Carrier Defrost Control Board HK32EA007 for Model PH13NR06000GAJAA

This is the genuine OEM Carrier Defrost Control Board (part number HK32EA007), factory-specified for the Carrier PH13NR06000GAJAA heat pump. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperature and run-time intervals to initiate and terminate defrost operation. When this board fails, the outdoor coil accumulates ice, efficiency plummets, and the system may short-cycle, lock out entirely, or run in continuous defrost mode. Replacing it with the correct OEM board is the only reliable fix.

• Specs: OEM Part No. HK32EA007 | Board Designation: CEPL130524-21 | Cross-references: CEBD430524-24A, 1177927 | Adjustable defrost intervals: 30 / 60 / 90 minutes | Defrost termination: 10-minute default | Factory-matched connector layout for direct drop-in installation
• OEM vs Generic: The OEM HK32EA007 is manufactured to Carrier's exact electrical tolerances and logic timing sequences. Aftermarket boards frequently use mismatched defrost termination timing, which causes premature coil re-icing or failed defrost termination — issues that can cascade into compressor damage. For a part this critical to system longevity, OEM is the only recommended choice.
• Install Difficulty: 3/5 — Disconnect power at the breaker and wait for capacitors to discharge before handling. Photograph all wiring harness connections prior to removal. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter (to confirm 24V control signal). Installation by a licensed HVAC technician is recommended for warranty preservation.
• Warranty: 1-year OEM manufacturer's warranty from date of purchase. Ships same business day when ordered by 5 PM EST, Monday–Friday.

Compatibility: Direct OEM replacement for the Carrier PH13NR06000GAJAA heat pump. Cross-references include part numbers HK32EA001, CEPL130524-01, CEBD420524-04A, CEBD430524-04B, and 1173636. Always verify your existing board's part number against the unit data plate before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — reach out before placing your order.