Fault

77

PV Insulation Impedance fault.

1 Devices that report this code

IVGM5KL-P1G1Inverter↗ view on device

77PV Insulation Impedance fault.Fault

Description

PV insulation impedance is too low.

Recommended fix

1. Check the connection of PV panels and inverter is firmly and correctly; 2. Check whether the PE cable of inverter is connected to ground; 3. Seek help from us, if can not go back to normal state.

Source:Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf · page 55

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.