E2 n 59 (FJM Indoor) — Outdoor unit error

What does E2 n 59 mean?

The FJM indoor unit displays E2 n 59, indicating that it has detected a general error originating from the outdoor unit. This means the outdoor unit is experiencing a fault, but the indoor unit cannot specify the exact issue.

• Any fault occurring in the outdoor unit (e.g., compressor, fan, sensor errors)
• Communication issue preventing specific outdoor error code transmission

Click steps to track your progress.

1. 1

   Immediately check the outdoor unit for any specific error codes displayed on its PCB. Prioritize troubleshooting that specific outdoor error.

2. 2

   Turn off the main power to the entire system at the circuit breaker for 30 seconds.

3. 3

   Restore power and attempt to restart the system.

4. 4

   If the outdoor unit also shows an error, troubleshoot that specific error. If not, or if the problem persists, contact a qualified technician.