OEM Carrier Integrated Furnace Control Board CESO110057-02 for Model GB1AAV048090AAJA

This is the factory OEM integrated furnace control (IFC) board for the Carrier GB1AAV048090AAJA gas furnace. The control board is the central brain of your heating system — it sequences the inducer motor, hot surface igniter, gas valve, and blower fan in precise timed steps. When the board fails, symptoms range from complete no-heat lockout and flashing fault codes to erratic ignition attempts, a furnace that starts then immediately shuts down, or a blower that runs continuously without heat. Replacing the control board with an exact OEM unit restores factory-programmed timing and diagnostic logic.

• Specs: OEM Part Number CESO110057-02 | Integrated furnace control (IFC) board | 24V control circuit | Factory-programmed ignition sequencing, fault code diagnostics, and blower delay timing matched to Carrier GB1AAV048090AAJA specifications
• OEM vs Generic: OEM control boards carry factory-calibrated ignition timing and blower delay profiles specific to your furnace model. Aftermarket boards may use generic timing curves that cause nuisance lockouts, voided warranties, or premature component wear on igniters and gas valves.
• Install Difficulty: 3/5 — Power down and lock out the furnace at the disconnect before starting. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph all wiring connections before removal. Transfer wiring harnesses one connector at a time to avoid mis-wiring. Verify correct mounting orientation before securing.
• Warranty: 1-year OEM factory warranty against defects. Orders placed by 3PM local time ship same business day from our climate-controlled parts warehouse.

Compatibility: Engineered as the direct drop-in replacement for Carrier GB1AAV048090AAJA gas furnaces. Always cross-reference OEM part number CESO110057-02 against your existing board label before ordering to confirm fitment. If you have questions about compatibility, our HVAC parts specialists verify fitment at no charge — contact us before you order and we'll confirm the right board for your unit.