OEM Carrier Defrost Control Board HK32EA001 for Model PH13NR060000AAAA

This is the genuine OEM defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH13NR060000AAAA heat pump. The defrost control board monitors outdoor coil conditions and governs when the unit enters and exits its defrost cycle, temporarily reversing refrigerant flow to melt ice buildup on the outdoor coil. When this board fails, common symptoms include: the unit remaining locked in defrost mode, never initiating a defrost cycle (resulting in heavy coil icing), erratic reversing valve behavior, or a complete loss of heating capacity in cold weather. Before replacing this board, verify that the defrost thermostat and outdoor coil temperature sensor are functioning correctly — a faulty sensor can mimic a failed board.

• Specs: 24V control circuit | Compatible board reference CEPL130524-01 / CEBD430524-06A | Single-phase | Dimensions approx. 6" L × 4" W | Factory Authorized Parts (FAP) certified
• OEM vs Generic: The OEM HK32EA001 is manufactured to Carrier's exact tolerance and cycle-timing specifications. Aftermarket boards often use non-matched relay ratings (e.g., Potter & Brumfield T9AS2D22-24) that can cause premature contactor wear or mis-timed defrost intervals, reducing system efficiency and compressor life.
• Install difficulty: 3/5 — Disconnect power at the breaker and wait 5 minutes before opening the control panel. Photograph all wiring connections before removal. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, and a multimeter to verify 24V supply. Transfer wiring harnesses one connector at a time to avoid mis-wiring. Check defrost thermostat and sensor continuity before powering up.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cut-off.

Compatibility: Engineered for the Carrier PH13NR060000AAAA heat pump. Also fits select Bryant and Payne heat pump models sharing the HK32EA001 specification — verify your model's data plate and existing board part number before ordering. Our fitment team is available to confirm compatibility before you buy. Order today and ship today — in-stock and ready to go.