F2 - 1 red flash, 1 green flash — L3 phase open

What does F2 mean?

This fault indicates that the L3 phase of the power supply is not detected. This could be due to an issue with the power supply itself or protective devices.

• Power supply issue with L3 phase
• Open circuit in protection devices
• Faulty wiring to the unit

Click steps to track your progress.

1. 1

   Check the main power supply, ensuring all phases are present.

2. 2

   Inspect any circuit protection devices (fuses, breakers) for the L3 phase.

3. 3

   Verify the wiring connections for the L3 phase are secure.

4. 4

   Ensure the power source is stable.