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I have a white rodges digital thermostat connected to a coleman heat pump. Thermostat worked fine untill this mourning and then noticed the air conditioner was set to come on at 90 degrees. Tried to reset thermostat, but it goes back to 90 degrees even on heating side. Allready reset thrmostat but did not help. Ay clues?....Thanks for any help.

If it is battery operated, replace the batteries and see what it does.


Otherwise, may have to replace the t-stat.


Thanks,
Robert