OEM Carrier Defrost Control Board CESO130076-00 for Model PH3PNA030000AA

This OEM defrost control circuit board is the factory-specified replacement for the Carrier PH3PNA030000AA heat pump. As the operational brain of your unit, this board coordinates defrost cycles, monitors safety switches and sensors, and directs voltage to all major components. When it fails, symptoms typically include the system failing to defrost (leading to ice buildup on the outdoor coil), erratic on/off cycling, total loss of heating or cooling, or fault codes that cannot be cleared. Replacing this board with the correct OEM part restores full factory-programmed logic and protects the compressor from damage caused by uncontrolled freeze-up.

• OEM Part Number: CESO130076-00 | Also superseded by HK32EA008 / CEPL130433-02 / CEBD430433-09A — verify your unit's data plate before ordering
• OEM vs Generic: OEM boards carry factory-programmed timing and defrost algorithms specific to Carrier heat pumps. Generic or aftermarket boards may use approximate logic, risking compressor damage or nuisance lockouts.
• Install Difficulty: 3/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone camera (photograph all wiring harness positions before disconnecting). Some boards require re-entering system configuration settings after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH3PNA030000AA heat pump. This board is also used across select Bryant and Payne heat pump platforms sharing the same defrost control architecture. Always confirm the part number printed on your existing board before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back up and running fast.