Critical

F11

Over current happen at Buckboost.

7 Devices that report this code
F11Over current happen at Buckboost.Critical
Description

Over current detected at the Buckboost stage.

Cause

Over current at Buckboost.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf · page 42
F11Battery voltage is too high.Fault
Description

Fault: Battery voltage is too high.

Cause

Battery spec/quantity does not meet inverter requirements.

Recommended fix

Check if spec and quantity of batteries are meet requirements.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37
F11Battery voltage is too high.Fault
Description

Fault: Battery voltage is too high.

Cause

Battery voltage exceeds the inverter's allowed maximum.

Recommended fix

Check if spec and quantity of batteries are meet requirements.

Source:IVEM8K-12K-II_compressed.pdf · page 43
F11Battery voltage is too high.Fault
Description

Battery voltage is too high.

Cause

Battery spec or quantity does not meet requirements.

Recommended fix

Check if spec and quantity of batteries are meet requirements.

Source:FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf · page 38
F11Over current happen at Buckboost.Fault
Description

Over current detected at Buckboost stage.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:T-REX-10KHP3G01-Inverter-User-Guide.pdf · page 28
F11Over current happen at Buckboost.Fault
Description

Over current happen at Buckboost.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:T-REX-10KLP3G01-Inverter-User-Guide.pdf · page 27
F11PV3 reverse connection fault.Fault
Description

Pv3 string positive and negative connection, check the string wiring.

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.