OEM Carrier Fan Blower Control Board HK61EA006 for Model FH4CNB004000AAAA

This is the factory OEM fan blower control board (part number HK61EA006), the direct replacement for the Carrier FH4CNB004000AAAA air handler. The blower control board serves as the central command module for the air handler's fan motor — managing blower speed staging, operation timing, and communication with the thermostat and system controls. When this board fails, common symptoms include the blower failing to start, running continuously regardless of thermostat demand, erratic fan speed behavior, or a complete system lockout with no response to thermostat calls for heating or cooling.

• Specs: OEM part number HK61EA006 | Factory-matched for Carrier FH4CNB004000AAAA air handlers | Compatible with multi-speed ECM or PSC blower motor configurations as specified | 24V control circuit interface
• OEM vs Generic: This is a genuine Carrier OEM board, manufactured to exact factory tolerances for firmware logic, terminal layout, and component ratings. Aftermarket boards may introduce compatibility issues with variable-speed motors, incorrect staging delays, or voided equipment warranties — always choose OEM for control boards.
• Install difficulty: 3/5 — Requires shutting off all power at the breaker and air handler disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone for photographing all wiring harness connections prior to removal. Low-voltage wiring experience recommended; consult a licensed HVAC technician if unsure.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed specifically for the Carrier FH4CNB004000AAAA air handler. Verify your existing board's part number against HK61EA006 before ordering. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility using your model and serial number. Order today and receive free same-day shipping on this in-stock OEM control board.