Fault

F20

Input output reverse.

6 Devices that report this code
F20Input output reverse.Fault
Description

Input and output wiring reversed.

Cause

Input output reverse.

Recommended fix

Confirm that the input and output wiring is correct.

Source:Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf · page 43
F20Over temperature happen at inverter circuit.Fault
Description

Fault: Over temperature happen at inverter circuit.

Cause

The temperature of internal inverter component is over the limitation.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37
F20Over temperature happen at INV circuit.Fault
Description

Fault: Over temperature happen at INV circuit.

Cause

The temperature of internal INV component is over the limitation.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:IVEM8K-12K-II_compressed.pdf · page 43
F20Over temperature happen at INV circuit.Fault
Description

Over temperature happen at INV circuit.

Cause

The temperature of internal INV component is over the limitation.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf · page 38
F20Input output reverse.Critical
Description

Input and output wiring is reversed.

Recommended fix

Confirm that the input and output wiring is correct.

Source:T-REX-10KHP3G01-Inverter-User-Guide.pdf · page 28
F20Battery 1 software overcurrent fault.Fault
Description

Battery 1 current is too large, check the battery charge and discharge power.

Source:T-REX-50KHP3G01-user-manual-.pdf · page 46

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