OEM Carrier Defrost Control Board CESO130076-00 for Model PH3PPA048000AA

This OEM defrost control board is the factory-specified replacement for the Carrier PH3PPA048000AA heat pump. The board serves as the operational brain of the unit, continuously monitoring sensors and safety switches to coordinate the defrost cycle and all other system functions. When this board fails, common symptoms include the unit locking out with no heating output, failure to initiate or complete a defrost cycle, erratic operation, or the system not responding to thermostat calls at all.

• Part Number: CESO130076-00 | Successor Part: HK32EA008 | Also cross-references CEPL130433-02 and CEBD430433-09A — verify fitment on your data plate before ordering.
• OEM vs Generic: OEM boards are programmed and tested to Carrier factory specifications, ensuring exact timing logic, defrost initiation thresholds, and safety lockout sequences. Aftermarket boards may use generic firmware that can cause nuisance lockouts or premature component wear.
• Install Difficulty: 3/5 — Always disconnect power at the disconnect box before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, phone/camera to document wiring harness connections before removal. Label all connectors prior to removing the old board.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH3PPA048000AA heat pump packaged unit. This part is also used across Bryant and Payne platforms sharing the same control board platform. Always confirm the part number printed on your existing board before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.