The Numbers Have Disaapeared And The Tempature Cant Be Set Up Or Down.

Many problems with a heating or cooling system can be traced back to the thermostat. In some cases, the thermostat is out of adjustment. Other times its batteries are dead. Obviously, replacing batteries or making a simple adjustment are easy solutions.

If your electronic thermostat is acting up and you're sure it's programmed properly, replace the batteries. With most types, you pull the thermostat's body straight out from its baseplate and find the batteries mounted to the back side of the body. But check your owner's manual...if your thermostat isn't built this way, you'll break it!

If these steps don't do the trick and your thermostat is outdated, it may not be worth the time and effort to fix it. It may be more affordable and sensible to replace it. Please see Home Thermostats Buying Guide. Then, for information on how to install it, see How to Install or Replace a Thermostat.

Thermostat Does Not Control Temperature

When your thermostat says one temperature and you know the room is another, it may be dirty, tilted on the wall, or located where it can't get a proper reading.