If your thermostat isn’t telling your equipment to run, it won’t activate.
The key step is checking it’s set to “cool” and not “heat.” Otherwise your air conditioning will probably not switch on. Or you could have. heated air coming from vents being the heat is on instead.
If you rely on a digital thermostat:
- Replace the batteries if the screen is blank. If the readout is presenting jumbled numbers, get a new thermostat.
- Make sure the proper setting is showing. If you can’t change it, cancel it by lowering the temperature and pushing the “hold” button. This will force your AC to work if programming is incorrect.
- Attempt to set the thermostat 5 degrees colder than the house’s temperature. Your AC won’t work if the thermostat matches the house’s temperature.
Once your thermostat is set correctly, you should start getting chilled air promptly.
If you rely on a smart thermostat, like one made by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for help. If you’re still having problems, call us at 608-291-3606 for support.