OEM Carrier Defrost Control Board HK32EA007 for Model PH13PR04200GAJAA

This is the factory OEM defrost control board for the Carrier PH13PR04200GAJAA heat pump system. The defrost control board manages the automatic defrost cycle — monitoring outdoor coil temperatures and run times, then triggering a timed or sensor-initiated defrost sequence to prevent ice buildup on the outdoor coil. When this board fails, common symptoms include the outdoor unit freezing solid, the system running in continuous defrost, failing to enter defrost at all, or triggering a hard lockout fault on the thermostat or air handler. Replacing with the correct OEM board ensures factory-programmed defrost timing logic is fully restored.

• Specs: OEM Part Number HK32EA007 | Defrost Control Board | Compatible with Carrier R-410A heat pump systems | Factory-programmed defrost logic and termination timing
• OEM vs Generic: This is a genuine Carrier OEM board. Aftermarket alternatives frequently use non-OEM defrost timing intervals, which can lead to under-defrost (coil icing) or over-defrost (efficiency loss and compressor stress). OEM is always the safest replacement for control boards.
• Install difficulty: 3/5 — Requires disconnecting low-voltage control wiring and line-voltage connections at the board. Tools needed: Phillips-head screwdriver, 1/4" nut driver, needle-nose pliers, multimeter. Always photograph all wiring connections before disconnecting. Power down the unit at the disconnect and breaker before beginning.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day when placed before 3 PM local time.

Compatibility: Designed as a direct OEM replacement for Carrier model PH13PR04200GAJAA heat pump condensers. Always cross-reference the OEM part number HK32EA007 on your existing board before ordering to confirm an exact match. Our fitment specialists are available to verify compatibility prior to purchase — no guesswork required.