OEM Carrier Defrost Control Board CESO110063-02 for Model HC1BNX060000AAAA

This is the factory OEM defrost control board for the Carrier HC1BNX060000AAAA heat pump system. The defrost control board monitors outdoor coil temperature and ambient conditions, initiating timed defrost cycles to prevent ice buildup on the outdoor coil. When this board fails, you may experience a coil frozen solid with no defrost initiation, erratic or continuous defrost cycling, the system locking out on fault codes, or the heat pump running in emergency heat mode only. Replacing the defrost control board with an OEM-matched unit restores factory-programmed defrost timing and sensor logic.

• Specs: OEM Part Number CESO110063-02 | Factory-programmed defrost timing intervals | Compatible with R-410A heat pump systems | Direct drop-in board replacement with matching terminal layout
• OEM vs Generic: OEM boards carry factory-calibrated defrost logic and termination thresholds. Aftermarket boards often use generic timing that leads to under- or over-defrost cycles, reducing efficiency and increasing wear on the compressor and coil.
• Install Difficulty: 3/5 — Power down and lock out the unit before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, phone or camera to photograph all wiring before disconnection. Transfer wiring harnesses one connector at a time to avoid miswiring. A basic knowledge of heat pump control wiring is recommended.
• Warranty: 1-year OEM factory warranty against defects. In stock and ships same business day from our climate-controlled warehouse.

Compatibility: This defrost control board is specifically designed for the Carrier HC1BNX060000AAAA 5-ton heat pump outdoor unit. Always verify your existing board's OEM part number matches CESO110063-02 before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat today and we'll get you the right part, fast.