Is error W60 a fault or a warning?

W60 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 W60?

Upgrade the firmware of BMS. The exact steps for each affected model are listed on this page.

W60

Felicity inverter error W60

BMS firmware version is not matched

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

It means the same on every affected model — find yours for the exact fix:

T-REX-10KHP3G01

InverterWarning

What it means

BMS firmware version is not matched — BMS firmware version mismatch.

Cause: The BMS firmware version does not match what the inverter's protocol expects, so battery communication cannot run reliably until the BMS is updated.

How to fix it

Upgrade the firmware of BMS.

Source: T-REX-10KHP3G01-Inverter-User-Guide.pdf, p.27

T-REX-10KLP3G01

InverterWarning

Also applies to:Apollo-5KLP1G01-MXApollo-5KLP1G01-M1Apollo-5KLP1G01-M2Apollo-4K6LP1G01-MXApollo-4K6LP1G01-M1Apollo-4K6LP1G01-M2

What it means

BMS firmware version is not matched

Cause: BMS firmware version is not matched.

How to fix it

Upgrade the firmware of BMS.

Source: T-REX-10KLP3G01-Inverter-User-Guide.pdf, p.27 · Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf, p.42

Frequently asked questions

What does error W60 mean on a Felicity inverter?: W60 means: BMS firmware version is not matched. The BMS firmware version does not match what the inverter's protocol expects, so battery communication cannot run reliably until the BMS is updated.
Is error W60 a fault or a warning?: W60 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 W60?: Upgrade the firmware of BMS. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the T-REX-10KHP3G01

All T-REX-10KHP3G01 codes

Other codes on the T-REX-10KLP3G01

All T-REX-10KLP3G01 codes All Apollo-5KLP1G01-MX 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.