Front Display icons


New Member
Hello all,

Does anyone know what the little "battery low" - type icon represents on the front display of the Hummy (I don't mean the on-screen display, I mean the actual panel on the box itself). I presume it doesn't actually mean "battery low" - is it the used disk space or something like that?
I can't find any pictures or help in the manual for any of the icons on the front panel but most are self-explanatory - eg a clock when a timer is set etc.