OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA018000ADAA

This is the genuine OEM factory-specified defrost control board (part number HK32EA001) for the Carrier PH10JA018000ADAA heat pump system. The defrost control board manages and initiates timed defrost cycles, commanding the reversing valve to switch modes and energizing the defrost relay to melt frost accumulation on the outdoor coil. When this board fails, symptoms typically include persistent frost or ice buildup on the outdoor unit, the heat pump failing to switch between heating and cooling modes, erratic defrost cycling, or a complete system lockout with no heating output.

• Specs: OEM Part No. HK32EA001 | Board No. CEPL130524-01 | Voltage: 24V | Phase: 1-Phase | Amperage: 5A | Compatible cross-references: CEBD430524-06A, 151922
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — not an aftermarket substitute. OEM boards are pre-programmed to factory defrost timing and temperature thresholds, ensuring your heat pump's reversing valve and defrost relay operate exactly as designed. Aftermarket boards may use imprecise timing circuits that cause premature or missed defrost events, stressing the compressor.
• Install difficulty: 3/5 — Shut off power at the disconnect and breaker before opening the control panel. Label and photograph all low-voltage wiring connections before disconnecting. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to confirm 24V control circuit). Discharge any capacitors present. Firmly seat all harness connectors on the new board before restoring power.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH10JA018000ADAA heat pump systems. Always verify your unit's data plate part number and board model number (CEPL130524-01) before ordering to confirm fitment. Not sure it fits? Our HVAC parts specialists verify compatibility before you buy — contact us today and get back up and running fast.