OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA04200GABAA

This is the genuine OEM Carrier defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH10JA04200GABAA heat pump. The defrost control board monitors outdoor coil conditions and governs the defrost cycle — sensing when frost has accumulated on the evaporator coil and initiating a timed defrost sequence to clear it. When this board fails, symptoms include persistent ice buildup on the outdoor coil, the unit never entering defrost mode, reduced heating efficiency in cold weather, or a full system lockout. Before replacing, verify the defrost thermostat and defrost sensor are functioning correctly; if both check out, the board is the likely culprit.

• OEM Part Number: HK32EA001 | Also cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927
• OEM vs Generic: This is a genuine Carrier factory-authorized board. OEM boards meet exact timing tolerances and connector specifications. Aftermarket boards may use ±10% timing variance, risking coil freeze-up or premature compressor wear.
• Install Difficulty: 3/5 — Shut off power at the disconnect and verify zero voltage before handling. Tools needed: ¼" nut driver, needle-nose pliers, multimeter, phone or camera to photograph wiring harness positions before removal. The board mounts in the outdoor unit's control compartment — standard field swap for experienced technicians.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse in original anti-static packaging.

Compatibility: Engineered as a direct drop-in replacement for Carrier model PH10JA04200GABAA heat pumps. Also fits select Carrier, Bryant, and Payne heat pump platforms sharing the HK32EA001 board specification. Always confirm your unit's part number on the data plate inside the access panel before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.