OEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG060000BAAA

This is the genuine OEM factory-replacement defrost control board (part number HK32EA001) for the Carrier PH4ANG060000BAAA heat pump. The defrost control board monitors outdoor coil conditions and initiates timed defrost cycles to prevent frost and ice accumulation on the evaporator. When this board fails, the heat pump loses its ability to enter the defrost cycle, causing progressive ice buildup on the outdoor coil, severely reduced heating capacity, and potential compressor damage from refrigerant flood-back. Common failure symptoms include a heavily iced outdoor unit, a system that runs but won't heat, or a unit that locks out entirely on a cold day.

• OEM Part Number: HK32EA001 | Also supersedes CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Factory Authorized Carrier Replacement Components Division part
• OEM vs Generic: This is a genuine Carrier OEM board with factory-calibrated defrost timing logic and original-spec relay contacts. Generic boards may use off-tolerance timers that under- or over-defrost, reducing efficiency and shortening compressor life.
• Install Difficulty: 3/5 — Disconnect power at the breaker and capacitor before handling. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera (photograph all wiring before disconnecting). Note defrost time selection jumper setting before removal and replicate on new board.
• Warranty: 1-year OEM factory warranty. Ships same business day from our stocked warehouse.

Compatibility: Fits Carrier model PH4ANG060000BAAA heat pump and other select Carrier, Bryant, and Payne heat pump models that specify part number HK32EA001. Always verify your existing board's part number label before ordering. Our team is available to confirm fitment — contact us before you buy.