If your thermostat isn’t telling your equipment to start, it won’t turn on.
The first step is checking it’s switched to “cool” and not “heat.” Otherwise your air conditioning may not switch on. Or you may receive. warm air blowing from vents because the furnace is on instead.
If you have a traditional thermostat:
- Swap out the batteries if the screen is empty. If the readout is presenting garbled numbers, get a new thermostat.
- Ensure the proper option is on the display. If you can’t change it, override it by lowering the temperature and pressing the “hold” button. This will force your AC to work if the configuration is wrong.
- Test setting the thermostat 5 degrees lower than the house’s temperature. Your AC won’t start if the thermostat matches the room’s temperature.
Once your thermostat is set properly, you should start getting cold air promptly.
If you’re using a smart thermostat, such as one produced by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for troubleshooting. If it still won’t work, contact us at 561-533-6066 for help.