Code 44 — Fan Coil Cannot Communicate with Blower

What does 44 mean?

This fault indicates that the Fan Coil unit's control system is unable to establish communication with its blower component. This prevents proper air circulation.

• Loose or damaged communication wiring to the blower
• Faulty blower control module
• Control board communication issue
• Power interruption to the blower

Click steps to track your progress.

1. 1

   Turn off power to the fan coil unit at the circuit breaker for at least 30 seconds.

2. 2

   Restore power and listen for any attempt from the blower to start.

3. 3

   Ensure all access panels are securely closed on the indoor unit.

4. 4

   If communication remains lost, contact a qualified HVAC technician for inspection of wiring and components.