Fault

F44

Loss of parallel hosts.

7 Devices that report this code
F44Loss of parallel hosts.Fault
Description

Loss of parallel hosts in parallel system.

Cause

Loss of parallel hosts.

Recommended fix

Test the parallel communication line, restart still have problems please contact the after-sales service.

Source:Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf · page 44
F44The firmware version of each inverter is not the same.Fault
Description

Fault: The firmware version of each inverter is not the same.

Cause

CPU/firmware versions differ between paralleled inverters.

Recommended fix

1. Update all inverter firmware to the same version. 2. Check the version of each inverter via LCD setting and make sure the CPU versions are same. if not, please contact your installer to provide the firmware to update. 3. After updating, if the problem still remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38
F44The firmware version of each inverter is not the same.Fault
Description

Fault: The firmware version of each inverter is not the same.

Cause

Firmware versions on parallel inverters do not match.

Recommended fix

1. Update all inverter firmware to the same version. 2. Check the version of each inverter via LCD setting and make sure the CPU versions are same. if not, please contact your installer to provide the firmware to update. 3. After updating, if the problem still remains, please contact your installer.

Source:IVEM8K-12K-II_compressed.pdf · page 45
F44The firmware version of each inverter is not the same.Fault
Description

The firmware version of each inverter is not the same.

Cause

Mismatched firmware versions across paralleled inverters.

Recommended fix

1. Update all inverter firmware to the same version. 2. Check the version of each inverter via LCD setting and make sure the CPU versions are same. if not, please contact your installer to provide the firmware to update. 3. After updating, if the problem still remains, please contact your installer.

Source:FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf · page 39
F44Host data loss.Fault
Description

Host data loss.

Recommended fix

Check if communication cables are connected well and restart the inverter. if the problem remains, please contact your installer.

Source:T-REX-10KHP3G01-Inverter-User-Guide.pdf · page 29
F44Host data loss.Fault
Description

Host data loss.

Cause

Communication cables not connected well.

Recommended fix

1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

Source:T-REX-10KLP3G01-Inverter-User-Guide.pdf · page 29
F44Inverter soft start fault.Fault
Description

Inverter voltage fails to rise normally at startup, shutdown and restart.

Source:T-REX-50KHP3G01-user-manual-.pdf · page 47

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