What it means
In-rush Current protection — Listed under 7.1 Battery System Features as part of the inverter-interface protection set: limits/protects against in-rush current at switch-on or fault transients.
Cause: A high inrush of current at connection or switch-on — typically the inverter's DC-bus capacitors charging from the battery — exceeded the in-rush protection limit.
How to fix it
- Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
- If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.
Source: felicity-5.1-kwh-user-manual.pdf, p.4