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Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This genuine OEM Carrier control board is the electronic brain of your FB4BSX060000AAAA fan coil air handler, managing blower operation, fan speed staging, and safe communication with your thermostat and outdoor unit. When a board fails you may notice no airflow, intermittent cycling, error codes, or a unit that won't power on at all. Installing this exact-fit replacement restores reliable heating and cooling performance and protects your system from voltage faults. This part is engineered specifically for the Carrier FB4BSX060000AAAA (5-ton) air handler, ensuring correct terminal layout, relay ratings, and harness connections with no rewiring or guesswork. Installation is moderate difficulty and best handled by a qualified HVAC technician; always disconnect power before servicing. Each board is shipped in protective anti-static packaging and ships same-day when your order is placed before 3PM CST. Choose a true OEM Carrier component instead of a generic substitute to maintain factory tolerances, full compatibility, and the longest possible service life for your air handler.
This part is compatible with Carrier model FB4BSX060000AAAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.