OEM Carrier Defrost Control Board HK32EA001 for Model PH15NA04200GBAAA

This is the genuine OEM Carrier defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH15NA04200GBAAA heat pump. The defrost control board serves as the command center for your heat pump's defrost cycle — it monitors run time and outdoor coil conditions, then triggers the reversing valve and auxiliary heat to melt frost accumulation on the outdoor coil. When this board fails, you'll typically see the outdoor unit locked in a solid block of ice, the system running continuously in heating mode without relief, or the unit short-cycling due to high-pressure lockout caused by a frozen coil. Do not ignore these symptoms: sustained coil icing will damage the compressor.

• Part Number & Cross-References: HK32EA001 | Also replaces CEPL130524-01, CEBD430524-06A, 1173636, 1177927, 662442528544 — confirm your existing board's part number before ordering.
• OEM vs Generic: OEM boards are manufactured to exact Carrier factory tolerances with original connectors and certified relay logic. Generic aftermarket boards may use ±10% timing tolerances on defrost intervals, leading to premature coil icing or excessive defrost cycles that reduce heating efficiency.
• Install Difficulty: 3/5 — Requires disconnecting 24V control wiring and line-voltage connectors. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, phone camera (photograph all wiring before disconnecting). Note the defrost time selector jumper setting on your original board before removal.
• Warranty & Shipping: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PH15NA04200GBAAA heat pump. Also fits select Bryant and Payne models sharing the same board platform — verify part number on your existing board's label. If your original board number is HK32EA007, note that defrost time selector settings differ between the 001 and 007 revisions. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us before purchasing if unsure.