OEM Carrier Integrated Furnace Control Board CESO110057-02 for Model GB3AAV048075AAJA

This OEM integrated furnace control board (part number CESO110057-02) is the factory-specified replacement for the Carrier GB3AAV048075AAJA gas furnace. The control board serves as the brain of your furnace — orchestrating the ignition sequence, monitoring safety inputs from the pressure switch and limit switches, controlling the inducer and blower motors, and managing flame sensing feedback. When this board fails, symptoms can range from a complete no-heat lockout and error code flashing, to erratic ignition attempts, unexpected shutdowns, or a furnace that runs the inducer but never advances to ignition.

• Specs: OEM Part No. CESO110057-02 | Integrated Furnace Control (IFC) | 120V input / 24V control circuit | Compatible with single-stage gas heat | Factory-matched timing sequences and fault code logic for Carrier GB3AAV048075AAJA
• OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket substitute. Generic control boards frequently use non-matching relay timing, incorrect blower delay profiles, and simplified fault logic that can mask underlying issues or void equipment warranties. OEM ensures exact compatibility with all connected sensors and motors.
• Install Difficulty: 3/5 — Disconnect power and gas before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera to photograph all wiring harness connections prior to removal. Take note of DIP switch positions on the old board before swapping. Most installs complete in 45–60 minutes.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model GB3AAV048075AAJA gas furnaces. Always cross-reference the part number on your existing board and confirm model number on the furnace data plate before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your heat back fast.