E1 n 54 (FJM Indoor) — Fan motor malfunction

What does E1 n 54 mean?

The FJM indoor unit displays E1 n 54, indicating that the indoor unit's fan motor is not operating correctly. This prevents proper air circulation and heat exchange.

• Faulty indoor fan motor
• Damaged fan motor cable or connection
• Obstruction of the fan blades (e.g., debris)

Click steps to track your progress.

1. 1

   Turn off the power to the FJM indoor unit at the circuit breaker.

2. 2

   Carefully check the indoor fan blades for any obstructions that might prevent them from spinning freely.

3. 3

   Inspect the fan motor cable connection to the indoor PCB for security and damage.

4. 4

   Restore power and try running the unit. If the fan still malfunctions, contact a qualified technician.