OEM Carrier Defrost Control Board HK32EA001 for Model PH15NA030000BAAA

This is the factory OEM defrost control board for the Carrier PH15NA030000BAAA heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and runtime to determine when to initiate and terminate defrost. When this board fails, symptoms include a heavily iced outdoor coil, the unit failing to enter or exit defrost mode, continuous defrost operation, or an outright system lockout with a fault code. Replacing it with the correct OEM part restores factory-programmed defrost timing and logic.

• Specs: OEM Part Number HK32EA001 | Factory defrost timing and temperature logic | Compatible voltage: 24V control circuit | Direct OEM drop-in replacement — no field modifications required
• OEM vs Generic: The OEM board carries exact factory defrost algorithms and component tolerances. Aftermarket boards may use generic timing that causes premature or delayed defrost cycles, reducing efficiency and potentially damaging the compressor.
• Install Difficulty: 3/5 — Disconnect power at the disconnect box before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring harness connections before removal. Transfer wiring one connector at a time to avoid mis-wiring.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH15NA030000BAAA heat pump. Always verify the OEM part number printed on your existing board before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — same-day shipping on all in-stock orders.