OEM Carrier Defrost Control Board HK32EA001 for Model PH3ANA036000BCAA

This is the genuine OEM defrost control board (part number HK32EA001) factory-specified for the Carrier PH3ANA036000BCAA heat pump. The defrost board monitors outdoor coil temperature and elapsed run time, then initiates and terminates the defrost cycle to prevent frost and ice accumulation on the outdoor coil. When this board fails, the heat pump may run in a near-continuous defrost loop, refuse to enter defrost at all, or ice over completely — dramatically reducing heating efficiency and risking compressor damage. Also cross-references OEM part numbers CEPL130524-01, CEBD430524-06A, 1173636, and 1177927.

• Specs: OEM Carrier defrost control board | Cross-refs: HK32EA001, CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | 24V control circuit | Selectable defrost intervals (30/60/90 min) | Compatible with Carrier, Bryant, and Payne heat pump platforms
• OEM vs Generic: Genuine OEM boards ship with factory-calibrated defrost timing logic and original connector housings. Aftermarket boards often use ±10% tolerance components and non-original connectors, introducing misfire risk and premature failure — especially in low-ambient heating conditions.
• Install Difficulty: 3/5 — Disconnect power at the disconnect box and wait 5 minutes before handling. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, smartphone (photograph all wiring harness connections before removal). Note defrost time selector switch position before swapping boards.
• Warranty: 1-year OEM factory warranty. Ships same business day from our stocked warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH3ANA036000BCAA heat pumps. Also fits select Bryant and Payne heat pump models sharing the same defrost board platform. Always verify your existing board's part number against HK32EA001 before ordering. Our fitment team is available to confirm compatibility — call or chat before you buy.