OEM Carrier Fan Blower Control Board HK61EA006 for Model FB4BNF036010AAAA

This OEM fan blower control board (part number HK61EA006) is the factory-specified replacement for the Carrier FB4BNF036010AAAA air handler. The integrated fan control board governs blower motor operation, fan speed sequencing, and communicates with the thermostat and outdoor unit to coordinate heating and cooling cycles. When this board fails, symptoms typically include the blower motor not starting, the fan running continuously regardless of thermostat demand, erratic speed changes, or a complete system lockout with no response to thermostat calls.

• Specs: OEM part number HK61EA006 | Factory-matched control logic for FB4BNF036010AAAA air handlers | 24V control circuit compatible | Multi-speed blower sequencing with timed delays
• OEM vs Generic: This is the genuine Carrier OEM control board, programmed with exact factory firmware and timing sequences. Aftermarket boards may lack proper delay timing or speed-tap configurations, leading to premature motor wear, comfort complaints, or mismatched communicating system behavior.
• Install difficulty: 3/5 — Disconnect power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera to photograph all wiring harness connections prior to removal. Transfer connectors one at a time to avoid miswiring. Verify all harness clips are fully seated before restoring power.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our climate-controlled parts warehouse.

Compatibility: Designed specifically for the Carrier FB4BNF036010AAAA fan coil air handler. Always cross-reference the OEM part number HK61EA006 on your existing board's label before ordering to confirm fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment on every order — contact us before you buy for peace of mind.