OEM Carrier Defrost Control Board HK32EA001 for Model PH4ANG036000BDAA

This is the factory OEM defrost control board (part number HK32EA001) for the Carrier PH4ANG036000BDAA heat pump. The defrost control board is the brain of your heat pump's defrost cycle — it monitors outdoor coil temperature and elapsed run time, then initiates a timed defrost sequence to melt accumulated ice off the coil. When this board fails, you'll typically see the outdoor unit encased in ice, the system locked out in defrost mode, poor heating performance, or a compressor that short-cycles due to high pressure buildup from a frozen coil.

• Part Number: HK32EA001 | Board ID: CEPL130524-01 | 24V control voltage | Compatible with Carrier, Bryant, and Payne heat pump platforms
• OEM vs Generic: This is a genuine Carrier factory-authorized replacement board. OEM boards are pre-programmed with the exact defrost timing intervals and temperature thresholds required by the PH4ANG036000BDAA — aftermarket boards may use approximated logic that causes premature or missed defrost cycles, shortening compressor life.
• Install Difficulty: 3/5 — Requires disconnecting 24V control wiring, outdoor temperature sensor leads, and reversing valve connections. Tools needed: Phillips-head screwdriver, 1/4" nut driver, needle-nose pliers, multimeter (to verify 24V supply before install). Always power down the unit at the disconnect and breaker before removing the board.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PH4ANG036000BDAA heat pump split system. Verify your existing board's part number or board ID (CEPL130524-01) against your unit's control panel before ordering. Need fitment confirmation? Our HVAC parts specialists are available to verify compatibility before you buy — order with confidence and get back to comfort fast.