OEM Carrier Defrost Control Board HK32EA001 for Model PH15NB04800GBAAA

This is the genuine OEM Carrier defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH15NB04800GBAAA heat pump. The defrost control board governs when and how long the unit enters its defrost cycle — periodically reversing refrigerant flow to melt ice accumulation off the outdoor coil. When this board fails, the outdoor coil builds frost unchecked, heat output collapses, and the unit may lock out entirely. Common failure symptoms include: persistent icing on the outdoor coil, the heat pump running in cooling mode during heating season, or a complete loss of heating with no fault recovery.

• Specs: OEM Part # HK32EA001 | Board ID: CEPL130524-01 / CEBD430524-06A | Voltage: 24V | Phase: 1-Phase | 5A | Factory-matched relay and timer components including Potter & Brumfield T9AS2D22-24
• OEM vs Generic: Genuine Carrier OEM boards are manufactured to exact factory tolerances and pre-tested for compatibility with the PH15NB04800GBAAA control circuit. Aftermarket alternatives often use substitute relay components with shorter rated lifespans, increasing the risk of repeat failure within one to two seasons.
• Install difficulty: 3/5 — Disconnect all power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera for wiring documentation. Photograph all harness connections before removal. Torque all terminal screws to spec to avoid intermittent faults post-install.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PH15NB04800GBAAA heat pump split system. Also fits select Carrier, Bryant, and Payne heat pump models using the HK32EA001 board — verify your unit's existing board part number against HK32EA001 or cross-references CEPL130524-01 / CEBD430524-06A before ordering. Our fitment team is available to confirm compatibility before you buy.