What does error W50 mean on a Felicity inverter?

W50 means: BMS firmware version is not matched. BMS firmware version mismatch.

Is error W50 a fault or a warning?

W50 is a warning: the red LED flashes and the unit keeps running. Fix the underlying condition before it escalates.

W50

Felicity inverter error W50

BMS firmware version is not matched

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

IVEM 6048

InverterWarning

Also applies to:IVEM6048IVEM8048-IIIVEM12048-IIIVEM 8K-12K Series IIIVEM8048-LVIVEM8048

What it means

BMS firmware version is not matched

Cause: BMS firmware version mismatch.

How to fix it

Upgrade the firmware of BMS.

Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.36 · IVEM8K-12K-II_compressed.pdf, p.42 · FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.37

Frequently asked questions

What does error W50 mean on a Felicity inverter?: W50 means: BMS firmware version is not matched. BMS firmware version mismatch.
Is error W50 a fault or a warning?: W50 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 W50?: Upgrade the firmware of BMS.

Related error codes

Other codes on the IVEM 6048

All IVEM 6048 codes All IVEM8048-II codes All IVEM8048-LV 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.