I have a go control GC-TBZ48, actually I have a couple of these. I only use these to control a hot water boiler, no AC. While I was away the batteries on one unit died. After replacing them I noticed that the home screen has the "cool" icon upper left and "auto" on lower left. My other unit reads "auto" on upper left and "on" on lower left.
I looked at the manual but was not able to figure out how to correct this. It would be great if someone would write out a flow chart to get me to the right settings.
Thank you