OEM Carrier Defrost Control Board HK32EA001 for Model PH12NA04200GAGAA

This is the OEM factory-specified defrost control board for the Carrier PH12NA04200GAGAA heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and run time to determine when to temporarily reverse refrigerant flow and melt ice buildup from the outdoor coil. When this board fails, the outdoor unit may ice over completely, lose heating capacity, or trip into a fault lockout — leaving your home without heat during the coldest months of the year.

• Specs: OEM Part # HK32EA001 | Board ID: CEPL130524-01 / CEBD430524-06A | 24V control voltage | 5A rated | Single-phase | Direct plug-in connector replacement
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP), built to exact factory specifications. Generic aftermarket boards often use off-tolerance relays and timers that result in premature defrost failures, improper cycle timing, and potential compressor damage from sustained icing.
• Install difficulty: 3/5 — Disconnect power at the breaker before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph wiring harness before removal. Transfer all harness connectors one-by-one to avoid miswiring. Confirm board orientation matches original before powering up.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PH12NA04200GAGAA heat pump and related models in the PH series lineup. Also fits select Bryant and Payne heat pump models sharing the same defrost board specification — verify your OEM part number on the existing board or your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy. Order now — in stock and ships today.