Clear BMS/Battery Error while waiting for batteries to be installed (BMS LOST))

[Will]

It's pretty common while there are long delays on battery installations for installers to install just the inverter, which will act as a solar inverter only. The downside of this is that it leaves you with a nasty BMS COMS LOST error and a red flashing error which is irritating to look at in the app.

FoxESS have released a solution for this on the latest firmware versions for their hybrid systems.

Steps to temporarily disable BMS errors:
Ensure your inverter is using these versions or newer and upgrade if required
Master : 1.48Slave : 1.02 Manager : 1.49

On the web portal
Once upgraded go to Inverter > Remote settings Icon > BasicParameters1 and disable BmsSet
Then go to the Operation section and click ClearEvents and you're inverter should no longer have any errors being disabled.

On the inverter (if no access to web portal)
Settings > 0000 > Feature or Battery look for BmsSet and disable it.

When you are ready to install your batteries simply reenabled this option.