OEM Carrier Defrost Control Board HK32EA007 for Model PH14NB01800GAAAA

This is the factory OEM defrost control board for the Carrier PH14NB01800GAAAA heat pump. The defrost control board manages the automatic defrost cycle — sensing outdoor coil temperature and initiating timed defrost sequences to prevent ice buildup on the heat pump's outdoor coil. When this board fails, you'll typically see symptoms such as a continuously iced-over outdoor coil, the unit failing to enter or exit defrost mode, reduced heating efficiency, or a complete system lockout in heating mode.

• Specs: OEM Part Number HK32EA007 | Factory-matched defrost timing and temperature logic | Direct board-for-board replacement | Compatible with 24V control circuit architecture
• OEM vs Generic: This is the genuine Carrier OEM board, programmed with factory-exact defrost timing intervals and trip points. Aftermarket boards may use approximate logic that causes premature or delayed defrost cycles, accelerating compressor wear and reducing system efficiency.
• Install Difficulty: 3/5 — Requires disconnecting power at the breaker and discharging any stored capacitor voltage before handling. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, and a phone or camera to photograph existing wiring before removal. Take care to transfer wiring harnesses one-at-a-time to avoid miswiring.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as a direct OEM replacement for Carrier model PH14NB01800GAAAA heat pump systems. Always verify the OEM part number on your existing board's label before ordering to confirm fitment. Not sure it's the right part? Our HVAC parts specialists verify fitment before you purchase — contact us before you order.