If your thermostat isn’t giving a sign to your system to work, it won’t switch on.
The most important part is checking it’s switched to “cool” and not “heat.” Otherwise your AC might not turn on. Or you could have. heated air blowing from vents because the heat is going instead.
If you rely on a digital thermostat:
- Put in new batteries if the screen is empty. If the readout is displaying garbled numbers, replace the thermostat.
- Ensure the proper mode is displaying. If you can’t alter it, reverse it by dropping the temperature and pressing the “hold” button. This will cause your AC to run if the configuration is wrong.
- Try setting the thermostat 5 degrees below the space’s temperature. Your AC won’t start if the thermostat is identical to the house’s temperature.
Once your thermostat is calibrated properly, you should begin getting cool air promptly.
If you have a smart thermostat, including ones manufactured by Nest, Ecobee, Lux, Honeywell or Bosch, check the manufacturer’s website for assistance. If you’re still having problems, contact us at 540-636-3396 for assistance.