The number of battery packs in series has not been set
Warning — the red LED flashes and the inverter keeps running. Deal with it before it escalates.
It means the same on every affected model — find yours for the exact fix:
The number of battery packs in series has not been set — Number of battery packs in series has not been set.
Cause: The battery configuration is incomplete: the number of battery packs in series was never set, so the inverter cannot map the measured pack voltage to a valid battery range.
Please set it correctly according to the number of battery packs used by the inverter.
Source: T-REX-10KHP3G01-Inverter-User-Guide.pdf, p.27
The number of battery packs in series has not been set
Cause: The number of battery packs in series has not been set.
Please set it correctly according to the number of battery packs used by the inverter.
Source: T-REX-10KLP3G01-Inverter-User-Guide.pdf, p.27
Prefer the full written guide? Read the complete Felicity inverter error-code guide
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.