OEM Carrier Defrost Control Board HK32EA007 for Model PH13PR04200GAKAA

This is the genuine OEM defrost control board (part number HK32EA007), the factory-specified replacement for the Carrier PH13PR04200GAKAA heat pump. The defrost control board governs the automatic defrost cycle — it monitors outdoor coil temperature and run-time intervals, then energizes the defrost relay to melt frost and ice accumulation off the outdoor coil. When this board fails, you'll typically see the outdoor coil icing over completely, the unit short-cycling or locking out, or the system running in permanent heating mode without ever entering a defrost cycle. Left unaddressed, a failed defrost board leads to compressor overload and costly downstream damage.

• Part Number: HK32EA007 | Also cross-references OEM numbers 1173636 and 1177927 | Factory-direct Carrier OEM replacement
• OEM vs Generic: This OEM board is factory-programmed with the exact defrost timing intervals, temperature thresholds, and termination logic specified for the PH13PR04200GAKAA. Aftermarket boards may use generic timing profiles that lead to incomplete defrosts or nuisance lockouts.
• Install Difficulty: 3/5 — Disconnect power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera for wiring photos. Take detailed photos of all connector positions before removal. Confirm system lockout is cleared after install before returning to service.
• Warranty: 1-year OEM manufacturer warranty included. In-stock units ship same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PH13PR04200GAKAA heat pump systems. Always cross-reference your unit's data plate and existing board part number before ordering. Our team is available to verify fitment — call or chat before you buy. Order by 3 PM local time for same-day shipping.