Mains Power Phase Reversal / Open Phase Detection

What does E32 mean?

The anti-phase device has detected that two phases of the mains power need to be swapped, indicating a phase reversal. Alternatively, the L2 phase of the mains power (primary side of contactor) has been detected as open, leading to unbalanced power.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the contactor for proper operation, looking for signs of pitting or loose connections at the terminals.