Hi,
yesterday I installed my Multiplus GX and programmed it accordingly. By mistake I run it on charger only mode so no battery was consumed in evening hours. I switched to Mode "I" by the mechanical switch, but now the ESS module is empty. I tried all I can do by reloading to Multiplus via MK3 interface but I cannot make it appear again.
Anyone faced this issues before and can help me?
Thanks
Martin
Try reinstalled the firmware or upgrade it to the latest version of firmware - this will reset everything to factory default - then reinstalled ess assistant and redo your settings.
also make sure The ESS test has passed . 
Are you sure you actually installed the ESS Assistant in the Multiplus?
One mandatory requirement for ESS is to set a country code for Multiplus (by default this is set to "None" and can only be changed once; after that you need a password to change it again; so choose carefully).
ESS is back. I powered it off last evening and not powered on again to check your suggestions. Tada... ESS is available. Maybe I did a different sequence in powering on batteries & inverter but anyhow it seems to work ;-)
thanks
