OEM Carrier Defrost Control Board CESO110063-02 for Model HC1CJX060000AAAA

This is the factory OEM defrost control board (part number CESO110063-02), the direct replacement for the Carrier HC1CJX060000AAAA heat pump system. The defrost control board monitors outdoor coil temperature and initiates timed defrost cycles to prevent ice buildup on the outdoor unit. When this board fails, you may experience a unit locked out on defrost, a coil frozen solid with no defrost initiation, erratic reversing valve behavior, or a heat pump that runs but delivers no heat in cold weather. Replacing this board with the correct OEM part restores factory-programmed defrost timing and termination logic — generic or mismatched boards can result in premature compressor damage from liquid refrigerant floodback.

• Specs: OEM Part No. CESO110063-02 | Designed for Carrier HC1CJX060000AAAA heat pump | 24V control circuit compatible | Factory-programmed defrost timing intervals and termination thresholds
• OEM vs Generic: This OEM board carries Carrier's exact firmware and component tolerances. Aftermarket defrost boards frequently use approximate timing intervals that can over-defrost (wasting efficiency) or under-defrost (causing coil icing and compressor strain). OEM is strongly recommended for heat pump defrost applications.
• Install Difficulty: 3/5 — Requires disconnecting 24V and line-voltage connectors at the board. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, multimeter, and camera or phone to document wiring before removal. Always shut off power at the disconnect and breaker before beginning. Verify defrost sensor lead connections are secure after installation.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day when ordered before 3 PM local time.

Compatibility: Engineered specifically for the Carrier HC1CJX060000AAAA 5-ton heat pump. Always cross-reference the OEM part number CESO110063-02 against your unit's data plate and existing board label before ordering. If your data plate or board shows a different part number suffix, contact our fitment team — we verify compatibility before your order ships so you get the right part the first time.