OEM Carrier Defrost Control Board HK32EA001 for Model PH15NA03000GBAAA

This genuine OEM defrost control board (part number HK32EA001) is the factory-specified replacement for the Carrier PH15NA03000GBAAA heat pump. The defrost control board monitors outdoor coil conditions and governs the defrost cycle — periodically reversing refrigerant flow to melt frost accumulation on the outdoor coil. When this board fails, the outdoor coil ices over completely, causing a dramatic loss in heating efficiency, frozen coil lockout, or a unit that runs continuously in defrost without recovering. Cross-reference part numbers include: CEPL130524-01, CEBD430524-06A, 1173636, and 1177927.

• Specs: OEM Defrost Timer/Control Board | Compatible timing sequences: 30, 60, 90 min | 24V control circuit | Direct plug-in connector replacement — no rewiring required
• OEM vs Generic: This is a genuine Carrier factory-authorized part. OEM boards are manufactured to exact tolerance for the PH15NA03000GBAAA platform. Aftermarket boards can introduce timing drift, nuisance lockouts, or connector incompatibility that shortens compressor life.
• Install difficulty: 3/5 — Disconnect power at the disconnect and breaker before opening the unit. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera to photograph wiring. Note defrost timing jumper setting before removal and replicate on the new board.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH15NA03000GBAAA heat pump. Also compatible with select Carrier, Bryant, and Payne heat pump models that specify the HK32EA001 board. Always verify your existing board's part number and connector layout before ordering. Our fitment team is available to confirm compatibility before you buy — ships today!