If your thermostat isn’t signaling your system to start, it won’t switch on.
The first part is checking it’s on “cool” and not “heat.” Otherwise your AC will probably not turn on. Or you may have. heated air blowing from vents since the furnace is going instead.
If you have a digital thermostat:
- Swap out the batteries if the readout is empty. If the screen is showing jumbled letters, replace the thermostat.
- Make sure the right setting is on the display. If you can’t alter it, reverse it by decreasing the temperature and hitting the “hold” button. This will force your AC to work if scheduling is incorrect.
- Test setting the thermostat 5 degrees colder than the house’s temperature. Your AC won’t cool if the thermostat is set the same as the house’s temperature.
Once your thermostat is adjusted correctly, you should begin getting cool air fast.
If you’re using a smart thermostat, including ones manufactured by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for assistance. If you’re still having problems, call us at 561-287-7071 for help.