Grid Under-Frequency

Grid frequency has dropped below 47.5 Hz. Inverter disconnects.

Common causes

Grid instabilityDNO frequency event

What to check

STEP 1

Wait for auto-recovery

STEP 2

If persistent: confirm G98/G99 frequency threshold settings are correct in inverter parameters

Escalate if

Recurring fault -- report to DNO with frequency log

Need full interactive diagnosis?

Faultpath walks you through decision trees, fault codes, and commissioning — built for solar & battery engineers.

More Anker fault codes