If your thermostat isn’t signaling your system to start, it won’t switch on.
The most important step is checking it’s on “cool” and not “heat.” Otherwise your AC might not start running. Or you may get. hot air coming from vents because the heat is running instead.
If you have a digital thermostat:
- Replace the batteries if the readout is blank. If the readout is presenting scrambled numbers, replace the thermostat.
- Ensure the proper option is showing. If you can’t alter it, override it by dropping the temperature and pushing the “hold” button. This will force your AC to work if the configuration is wrong.
- Test setting the thermostat 5 degrees cooler than the room’s temperature. Your AC won’t work if the thermostat matches the house’s temperature.
Once your thermostat is adjusted correctly, you should begin getting cool air promptly.
If you rely on a smart thermostat, such as one manufactured by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for help. If you still can’t get it to work, contact us at 239-244-3439 for support.