OEM Carrier Defrost Control Board HK32EA001 for Model PH12NA060000ABAA

This OEM defrost control board (part number HK32EA001) is the factory-authorized replacement for the Carrier PH12NA060000ABAA heat pump. The defrost control board monitors outdoor coil temperature and ambient conditions, then initiates and terminates the defrost cycle by signaling the reversing valve and temporarily disabling the outdoor fan motor. When this board fails, the outdoor coil will ice over, the system will short-cycle, fail to switch between heating and cooling modes, or lock out entirely — leaving your home without heat or cooling on the coldest or hottest days.

• Specs: OEM Part # HK32EA001 | Board # CEPL130524-01 / CEBD430524-06A | 24V control voltage | 5A | Single-phase | Compatible cross-references: 151922, NS 1507
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP), manufactured to exact OEM tolerances. OEM boards use precision timing logic and factory-calibrated defrost intervals — generic boards often run incorrect defrost cycles, leading to repeated icing and compressor damage.
• Install difficulty: 3/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera to photograph wiring before removal. Note all terminal labels before disconnecting. Take care with ribbon connectors and terminal locking tabs.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Fits Carrier model PH12NA060000ABAA heat pump split systems. Also confirmed to fit select 38YCG and 538BNR series units — always verify your unit's existing board part number against HK32EA001 before ordering. Our HVAC parts specialists are available to confirm fitment before you buy.