How do I fix Backup Voltage High (Alarm 1056) on a Solis?

Check the backup terminal wiring is correct. Then: Restart the whole system.

Solis

OV-Vbackup

Backup Voltage High (Alarm 1056)

Backup output voltage exceeds the set value.

Common causes

Backup terminal wiring issue

What to check

STEP 1

Check the backup terminal wiring is correct.

STEP 2

Restart the whole system.

Escalate if

Wiring sound but alarm persists

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