What does error W80 mean on a Felicity inverter?

It depends on the model — 2 devices use code W80. On the IVEM 6048 it means: BMS communication fault. The card for each model on this page gives its exact meaning and fix.

Is error W80 a fault or a warning?

W80 is a warning: the red LED flashes and the unit keeps running. Fix the underlying condition before it escalates.

How do I clear or fix error W80?

Check if the communication line is connected well. The exact steps for each affected model are listed on this page.

W80

Felicity inverter error W80

BMS communication fault

Warning — the red LED flashes and the inverter keeps running. Deal with it before it escalates.

The exact meaning depends on your model:

IVEM 6048

InverterWarning

Also applies to:IVEM6048

What it means

BMS communication fault

Cause: Communication line between BMS and inverter is not connected well.

How to fix it

Check if the communication line is connected well.

Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.36

IVEM8048-II

InverterWarning

Also applies to:IVEM12048-IIIVEM 8K-12K Series II

What it means

The BMS communication is abnormal — Warning: The BMS communication is abnormal. Beep once every second.

Cause: BMS communication cable is not properly connected or communication failure.

How to fix it

Check whether the BMS communication cable is connected.

Source: IVEM8K-12K-II_compressed.pdf, p.42

Frequently asked questions

What does error W80 mean on a Felicity inverter?: It depends on the model — 2 devices use code W80. On the IVEM 6048 it means: BMS communication fault. The card for each model on this page gives its exact meaning and fix.
Is error W80 a fault or a warning?: W80 is a warning: the red LED flashes and the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error W80?: Check if the communication line is connected well. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the IVEM 6048

All IVEM 6048 codes

Other codes on the IVEM8048-II

All IVEM8048-II codes

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.