OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA02400GAEAA

This is the genuine OEM defrost control board (part number HK32EA001), factory-specified for the Carrier PH10JA02400GAEAA heat pump. The defrost control board manages the timing and execution of the defrost cycle — periodically reversing refrigerant flow to melt frost accumulation off the outdoor coil. When this board fails, the outdoor coil ices over, heat output drops dramatically, and the system may enter a safety lockout. You may also notice the unit running continuously in heating mode without ever entering a defrost cycle, or conversely, defrosting too frequently and short-cycling.

• Specs: 24V control circuit | OEM part number HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A | Compatible board dimensions approximately 6" × 4" | Single-phase
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM boards are programmed with exact defrost timing intervals and safety thresholds calibrated for your unit. Generic aftermarket boards may use mismatched defrost timing logic, leading to premature compressor wear or insufficient coil clearing.
• Install difficulty: 3/5 — Requires disconnecting 24V low-voltage wiring harness and high-voltage connections at the board. Always shut off power at the disconnect and breaker before beginning. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, needle-nose pliers, smartphone (to photograph all wiring before removal). Label every wire connector before disconnecting.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before our daily cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Designed for the Carrier PH10JA02400GAEAA heat pump. Also fits select Carrier, Bryant, and Payne heat pump models sharing the HK32EA001 board specification — always verify your existing board's part number against your unit's data plate before ordering. If you have any fitment questions, our HVAC parts specialists verify compatibility before you buy.