System light is not coming on and I have already replaced the batteries. The unit shows the time and -AC fails to turn on the furnace.
Time - AC
Dec 23, 2015
2 Replies
Batteries from a different time zone?
KC posted for all of us...
Did you pay the electric bill? -AC usually means there is no power to the furnace to get commands from the thermostat.
My Christmas gift to you...
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required