OEM Carrier Defrost Control Board HK32EA001 for Model PH3ANA060000BBAA

This is the genuine OEM Carrier defrost control board (part number HK32EA001), the factory-specified replacement for the Carrier PH3ANA060000BBAA heat pump. The defrost control board monitors outdoor coil conditions and initiates the defrost cycle to prevent frost and ice accumulation on the evaporator coil. When this board fails, the heat pump will typically remain locked in a frost-over condition, lose heating efficiency, or trigger a system fault — leaving the unit unable to transfer heat effectively, especially in cold weather.

• Specs: OEM Part # HK32EA001 | Cross-references: CEPL130524-01, CEBD430524-06A, 1173636, 1177927 | Selectable defrost timing intervals (30/60/90 min) | 24V control circuit compatible | Factory-matched PCB design
• OEM vs Generic: This is the genuine Carrier factory board — not an aftermarket substitute. OEM boards are built to exact PCB tolerances, relay ratings, and timing specifications. Generic or upgraded boards may deviate in defrost initiation thresholds, potentially causing premature or missed defrost cycles that shorten compressor life.
• Install difficulty: 3/5 — Disconnect power at the breaker before opening the control panel. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, and a phone/camera to photograph all wiring harness connections before removal. Label connectors before disconnecting. Verify outdoor ambient temp sensor and defrost thermostat before condemning the board.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PH3ANA060000BBAA heat pump. Also cross-references to Carrier, Bryant, and Payne heat pump models using the HK32EA001 board. Always verify your unit's part number on the data plate or existing board label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get your system back online fast.