FA - L2-phased open phase or 51CM connector open

What does FA mean?

The system has detected an open phase on the L2 power line or an open 51CM connector. This indicates a power supply or connection issue on one of the phases.

• Loss of power on the L2 phase.
• Loose or disconnected 51CM connector.
• Faulty wiring.

Click steps to track your progress.

1. 1

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

2. 2

   Turn the power back on.

3. 3

   Check if any other electrical devices on the same circuit are also experiencing power issues.

4. 4

   If the fault persists, professional electrical inspection is required.