OEM Carrier Control Board CESO130007 for Air Handler Model FK4BNF001005AAAA

This is the genuine OEM integrated function control (IFC) board for the Carrier FK4BNF001005AAAA fan coil air handler. The control board serves as the brain of your air handler — receiving signals from the thermostat, sequencing blower motor speeds, managing electric heat strips, and coordinating with the outdoor condensing unit. When it fails, common symptoms include the system not responding to thermostat calls, the blower running continuously or not at all, erratic fan speeds, or fault codes flashing on the board itself with no clear mechanical cause.

• Specs: OEM part number CESO130007 | 24V control circuit compatible | Multi-speed blower control outputs | Integrated diagnostics with LED fault codes | Factory-direct replacement, no modifications required
• OEM vs Generic: This is the factory-specified OEM board engineered to Carrier's exact tolerances. Generic boards may lack full diagnostic LED functionality, use lower-rated relay contacts, or omit proprietary timing sequences — all of which can shorten equipment life or void manufacturer warranties.
• Install difficulty: 3/5 — Requires careful documentation of all harness connections before removal. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, smartphone or camera for wiring photos, and a multimeter to confirm 24V signal at thermostat terminals. Disconnect power at the breaker before beginning. If multiple harness connectors are present, label each one.
• Warranty: 1-year OEM factory warranty against defects. Order today and we ship same business day from our warehouse.

Compatibility: Designed as a direct drop-in replacement for Carrier FK4BNF001005AAAA fan coil air handlers using OEM part number CESO130007. Always verify your existing board's part number on the board label or your unit's wiring diagram before ordering. Our fitment specialists are available to confirm compatibility before you purchase — call or chat today. In stock and ready to ship.