OEM Carrier Defrost Control Board HK32EA001 for Model PH15NA03600GBAAA

This is the genuine OEM defrost control board (part number HK32EA001) factory-specified for the Carrier PH15NA03600GBAAA heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent frost and ice accumulation on the evaporator coil. When this board fails, the heat pump will either stay locked in a continuous defrost cycle, never enter defrost at all, or display a fault lockout — all of which severely degrade heating efficiency and can cause compressor damage if left unaddressed.

• OEM Part Number: HK32EA001 | Also cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part
• OEM vs Generic: The OEM board uses factory-calibrated defrost timing intervals and precision relay contacts rated to exact Carrier specifications. Aftermarket boards frequently use lower-tolerance relays and mismatched timing logic, leading to premature failure or improper defrost cycles that void equipment warranties.
• Install Difficulty: 3/5 — Disconnect power at the breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera to photograph all wire connections before removal. The board mounts in the outdoor unit control box; label every wire harness connector before unplugging. Torque all screw terminals to spec after reinstallation.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse in original Carrier factory packaging.

Compatibility: Designed for the Carrier PH15NA03600GBAAA heat pump. Also compatible with select Bryant and Payne heat pump models sharing the HK32EA001 specification — verify your unit's data plate and existing board part number before ordering. Our fitment team is available to confirm compatibility prior to purchase. Order now — in stock and ships today.