OEM Carrier Defrost Control Board HK32EA007 for Model PH13PR04800GAKAA

This is the genuine OEM Carrier defrost control board (part number HK32EA007), factory-specified for the Carrier PH13PR04800GAKAA heat pump. The defrost control board governs the automated defrost cycle — monitoring outdoor coil temperature and initiating timed defrost sequences to melt ice accumulation off the evaporator coil. When this board fails, symptoms include persistent ice buildup on the outdoor unit, failure to switch into defrost mode, short-cycling during heating operation, or a complete system lockout. Replacing this board with a genuine OEM part restores factory-calibrated defrost timing and sensor thresholds.

• Specs: OEM Part Number HK32EA007 | Replaces cross-references 1173636 & 1177927 | Factory-matched control logic for Carrier/Bryant/Payne heat pump platforms | 24V control circuit compatible
• OEM vs Generic: Genuine OEM boards ship with factory-calibrated defrost timing intervals and original connector harnesses. Aftermarket alternatives may use approximated timing logic, risking improper defrost cycles, coil icing, or nuisance lockouts that shorten compressor life.
• Install Difficulty: 3/5 — Disconnect power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, and a phone/camera to photograph all wiring harness connections prior to removal. Label each connector. Snap the replacement board into the existing bracket and reconnect in reverse order. Verify defrost initiation on first heating cycle.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse.

Compatibility: Designed for the Carrier PH13PR04800GAKAA heat pump (4-ton, single-stage). Also cross-compatible with select Bryant and Payne heat pump models sharing the same board platform — confirm your unit's existing part number label before ordering. Our fitment team is available to verify compatibility prior to purchase.