OEM Carrier Defrost Control Board HK32EA007 for Model PH13PA06000GABAA

This is the factory OEM defrost control board (part number HK32EA007), the direct factory-specified replacement for the Carrier PH13PA06000GABAA heat pump. The defrost control board monitors outdoor coil temperature and ambient conditions to initiate and terminate timed defrost cycles, preventing damaging ice buildup on the outdoor coil during heating operation. When this board fails, you'll commonly see symptoms such as the outdoor coil freezing solid, the unit locking out on fault codes, erratic or absent defrost cycles, or the heat pump running in heating mode with severely reduced capacity.

• Specs: OEM Part # HK32EA007 | Cross-references: 1173636, 1177927 | Designed for R-410A split-system heat pumps | Factory-matched timing and temperature trip points
• OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket substitute. Generic boards frequently use off-spec thermistors and timing circuits that result in premature or missed defrost cycles, leading to compressor overload and early system failure.
• Install difficulty: 3/5 — Requires shutting down and locking out the unit at the disconnect. Tools needed: ¼" nut driver, Phillips screwdriver, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Match all connector positions exactly on reinstall.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PH13PA06000GABAA heat pump. Also cross-references legacy boards HK32EA001 and part codes 1173636 and 1177927 used across Carrier, Bryant, and Payne heat pump platforms. Always verify your existing board's part number against your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase.