OEM Carrier Fan Blower Control Board Kit 322848-751 for Model FC4BNF024000AAAA

This is the factory OEM replacement fan blower control board kit (part number 322848-751) for the Carrier FC4BNF024000AAAA fan coil air handler. The integrated fan coil control (IFC) board orchestrates all blower motor operations — managing speed staging, thermostat signal interpretation, and safety circuit monitoring. When this board fails, common symptoms include the blower refusing to start, running continuously regardless of thermostat calls, erratic multi-speed behavior, or a complete loss of heating and cooling airflow even when the outdoor unit or furnace is operating normally. Fault LED codes on the board itself can also help pinpoint whether the board or a downstream component is responsible.

• Specs: OEM part number 322848-751 | Fan Blower Control Board Kit | 24V control circuit compatible | Direct factory-matched replacement for Carrier FC4BNF024000AAAA air handler | Includes all mounting hardware per kit designation
• OEM vs Generic: This OEM board is programmed with the exact timing delays, speed profiles, and safety lockout sequences specified by Carrier engineering. Aftermarket boards frequently use generic firmware that mis-times blower off-delays, reducing comfort and potentially voiding equipment warranties.
• Install difficulty: 3/5 — Disconnect power at the disconnect and breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, phone or camera to photograph all wiring harness connections prior to removal. Transfer one connector at a time to avoid mis-wiring. Restore power and verify all thermostat modes before closing the unit.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier FC4BNF024000AAAA fan coil air handler. Always verify your existing board's part number against 322848-751 and confirm your unit's data plate model number before ordering. Not sure if this is the right board? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.