OEM Carrier Defrost Control Board HK32EA001 for Model PH13NB06100GBBAA

This is the genuine OEM defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH13NB06100GBBAA heat pump. The defrost control board monitors outdoor coil conditions and manages the timing and duration of automatic defrost cycles — a critical function in heat pump operation. When this board fails, the outdoor unit may ice over completely, fail to enter or exit defrost mode, or lock out on a fault, leaving your home without adequate heat during cold weather.

• Specs: 24V control circuit | Single-phase | OEM board number CEPL130524-01 | Cross-references: 151922, CEBD430524-06A | Dimensions approx. 6" × 4" | 5A rated
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM boards are pre-programmed with exact defrost timing logic for your unit. Aftermarket boards often use generalized timing algorithms that can under- or over-defrost, reducing efficiency and shortening compressor life.
• Install difficulty: 3/5 — Disconnect power at the breaker and verify zero voltage before opening the control panel. Photograph all wiring harness connections before disconnecting. Tools needed: ¼" and 5/16" nut drivers, flathead screwdriver, needle-nose pliers, multimeter. Swap board and reconnect harnesses in reverse order. Restore power and run a test defrost cycle to confirm operation.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Engineered as a direct fit for the Carrier PH13NB06100GBBAA heat pump and other select Carrier, Bryant, and Payne heat pump models sharing this defrost board specification. Always verify your existing board's part number against HK32EA001 before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.