OEM Carrier Defrost Control Board HK32EA001 for Model PH12NA060000ACAA

This is the OEM factory-specified defrost control board for the Carrier PH12NA060000ACAA heat pump. The defrost control board monitors outdoor coil temperature and ambient conditions, then initiates and terminates timed defrost cycles to prevent ice buildup on the outdoor coil. When this board fails, you'll typically see the outdoor unit freeze solid, the system lock out on a fault, fail to enter defrost mode at all, or get stuck in a continuous defrost cycle — all of which severely reduce heating efficiency and can lead to compressor damage if left unaddressed.

• Specs: OEM Part# HK32EA001 | Also cross-references CEPL130524-01, CEBD430524-06A | Voltage: 24V | Phase: 1-Phase | Amperage: 5A | Board Dimensions: approx. 6" × 4"
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part (FAP). OEM boards are programmed to exact factory defrost timing and temperature thresholds for the PH12NA060000ACAA. Aftermarket boards may use wider tolerances, leading to premature coil icing or unnecessary defrost cycles that reduce efficiency.
• Install Difficulty: 3/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: Phillips and flathead screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter for verification. Photograph all wiring harness connections before removal. The board mounts inside the unit's control compartment; all factory connectors are keyed for correct reinstallation.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by 3:00 PM local time.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH12NA060000ACAA heat pumps. Also fits select Bryant and Payne heat pump models sharing the same control platform — verify your data plate part number matches HK32EA001 before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase. Order today and receive free ground shipping on orders over $99 — in stock and ready to ship.