How can I change the program back to manual?

?? Need more info,, what are you wanting to know?numbers off tstat would help

I wanted only the temperature to show on the display without any programming, no time, no adjustments, etc.

Do you have the manual that come with stat,, kill the power to furnace/take out the battery,, start over from scratch,, this should cancil all the programming that was done before

Thank you