OEM Carrier Fan Blower Control Board HK61EA010 for Model FX4CNF018000AAAA

This OEM fan blower control board (part number HK61EA010) is the factory-specified replacement for the Carrier FX4CNF018000AAAA fan coil air handler. The control board serves as the central command hub for all blower motor and fan coil operations — managing blower speed staging, auxiliary heat sequencing, and communication with the thermostat's 24V control circuit. When this board fails, common symptoms include the blower motor refusing to start, erratic or uncontrolled fan speeds, failure to respond to thermostat calls for heating or cooling, and diagnostic fault codes or LED blink sequences indicating an internal board fault.

• Specs: OEM part number HK61EA010 | Designed for Carrier FX4CNF018000AAAA fan coil air handler | 24V control circuit compatible | Multi-speed blower motor control with staged fan operation | Factory-matched terminal layout for direct drop-in replacement
• OEM vs Generic: This is a genuine Carrier OEM board manufactured to exact factory specifications. Generic or aftermarket control boards frequently carry mismatched firmware, incompatible relay ratings, or incorrect terminal configurations that can cause unpredictable operation, nuisance lockouts, or damage to the blower motor — always choose OEM for control boards.
• Install difficulty: 3/5 — Disconnect power at the breaker and verify zero voltage before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a smartphone or camera to photograph all wiring connections prior to removal. Transfer wiring harnesses one connector at a time to avoid miswiring. Refer to the unit's wiring diagram located inside the access panel.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier FX4CNF018000AAAA fan coil air handler. Verify your existing board's part number against HK61EA010 before ordering. If your board carries a different suffix or revision code, contact our fitment team — we confirm compatibility before your order ships so you get the right part the first time.