OEM Carrier Defrost Control Board HK32EA001 for Model PH3ANA024000BAAA

This is the genuine OEM factory-replacement defrost control board for the Carrier PH3ANA024000BAAA heat pump. Part number HK32EA001, this board is the brain of your heat pump's defrost system — it monitors outdoor coil conditions, determines when frost has accumulated, and initiates timed defrost cycles to protect compressor efficiency and prevent coil icing. When this board fails, the heat pump typically stays locked in a frost-covered state, loses heating capacity dramatically, or triggers continuous fault lockouts. Common failure symptoms include ice buildup on the outdoor unit, the system failing to enter or exit defrost mode, and reduced heating output during cold weather.

• OEM Part Number: HK32EA001 | Also supersedes: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Carrier Factory Authorized Replacement Part
• OEM vs. Generic: This genuine Carrier OEM board ships with factory-matched relay ratings, original connector positions, and pre-configured defrost timing intervals. Aftermarket boards often require jumper adjustments, carry ±10% timing tolerances, and may void system warranties.
• Install Difficulty: 3/5 — Requires turning off power at the disconnect and breaker before opening the control compartment. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone camera for wiring photos. Always photograph all wiring harness connections before removing the old board. Test defrost sensor and defrost thermostat continuity before condemning the board.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our stocked warehouse. Carrier Factory Authorized Parts — preserves your system's published efficiency ratings and certifications.

Compatibility: Designed as a direct drop-in replacement for Carrier model PH3ANA024000BAAA heat pumps. Also compatible with select Bryant and Payne heat pump models sharing the HK32EA001 specification — verify your unit's data plate before ordering. Cross-reference part numbers: CEPL130524-01, CEBD430524-06A, 1173636, 1177927. Not sure it fits? Our HVAC parts specialists verify fitment before you order — in stock and ships today.