Label the wires, noting where they were attached on the old thermostat. Secure them (tie into a loop or tape them to the wall) to keep them from falling back into the wall.
Buying Guide -
http://www.lowes.com/lowes/lkn?action= howTo&p=Improve/ProgramThermostat.html& r
In the event of a power outage, they hold their programming up to 72 hours--without backup batteries. These are the types of features to look for if you want a state-of-the-art thermostat that ...
rule Step 7 Turn the electricity back on at the service panel, and test the thermostat in both the auto and manual modes to confirm that the furnace and air conditioner cycle on and off at ...