Mains phase failure

What does F-06 mean?

A phase failure in the 3-phase mains supply or an under-voltage condition has occurred, leading to an immediate switch-off with inhibit. This protects the inverter from operating with an unbalanced or insufficient power supply. Continuous operation under these conditions can stress and damage the inverter and motor.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check upstream circuit breakers, fuses, and power distribution for any tripped devices or open circuits.