OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA024000AHAA

This is the genuine OEM defrost control board (part number HK32EA001) factory-specified for the Carrier PH10JA024000AHAA 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, symptoms include the outdoor unit freezing over completely, the system failing to produce heat, or the unit getting stuck in — or never entering — the defrost cycle. Before replacing this board, verify the defrost sensor (HH18HA279) and defrost thermostat are functioning correctly; if those components test good, this board is the likely culprit.

• OEM Part Number: HK32EA001 | Also cross-references: HK32EA007, CEPL130524-01, CEBD430524-06A, 1173636, 1177927
• OEM vs Generic: This is a genuine Carrier factory-authorized replacement board engineered to exact circuit tolerances. Aftermarket boards may use off-spec timing components that cause premature defrost failures or compressor damage over time.
• Install Difficulty: 3/5 — Disconnect power at the disconnect box before servicing. Tools needed: ¼" nut driver, flathead screwdriver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Note defrost time-select jumper position and replicate on new board.
• Warranty: 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse.

Compatibility: Designed for the Carrier PH10JA024000AHAA heat pump. Also compatible with a wide range of Carrier, Bryant, and Payne heat pump models that use the HK32EA001 defrost board. Always verify your unit's data plate part number before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and get your system back up and running fast.