OEM Carrier Defrost Control Board CESO110063-02 for Model HB1BJX060000AAAA

This is the factory OEM defrost control board (part number CESO110063-02) for the Carrier HB1BJX060000AAAA heat pump. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and initiating timed defrost sequences to prevent ice accumulation. When this board fails, you may notice the outdoor unit freezing solid, the system locking out entirely, the heat pump running continuously without producing heat, or defrost cycles that never initiate — or never terminate. Replacing the defrost control board with the correct OEM part restores factory-calibrated defrost timing and protects the compressor from ice-load damage.

• Specs: OEM Part No. CESO110063-02 | Defrost control board | Factory-matched timing intervals | Designed for R-410A heat pump systems | Direct plug-and-play wiring harness compatibility
• OEM vs Generic: OEM boards use factory-programmed defrost timing logic specific to Carrier heat pump algorithms. Aftermarket boards often use generic timing tables that can under-defrost or over-defrost the coil, reducing efficiency and risking compressor damage over time.
• Install Difficulty: 3/5 — Requires disconnecting 240V power at the breaker before beginning. Tools needed: needle-nose pliers, Phillips and flathead screwdrivers, voltage meter to confirm power is off. Photograph all wiring connections before disconnecting. Board mounts to existing standoffs; reconnect harnesses in original orientation.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier HB1BJX060000AAAA heat pump. Always verify the OEM part number printed on your existing board matches CESO110063-02 before ordering. If you have any questions about fitment or need help confirming compatibility with your unit's serial number, our HVAC parts specialists are available to verify before you buy — order with confidence and get back to comfort fast.