locate your home's thermostat and tape an accurate thermometer on the wall next A to it. Wait 15 minutes and check the temperature reading on both devices. variance of +/- 3˚F is generally acceptable, but anything outside that range means your previously accurate thermostat may require service.
Keep thermostat temperature preset.
Set your thermostat to "auto" and not on "fan.""
You can save energy and keep your costs in check by keeping your thermostat at 68 degrees Fahrenheit during the daytime.
Change your air filters
With a clogged air filter, the air won't flow over the coils correctly, which makes them stop working and leads to total system failure.
Turn off your furnace. Find and locate your furnace filter. Determine the size of your filter. Remove the existing (old) filter. Insert the new filter. Return furnace to "on" position.
Call HAV' ARC.
We're here to help! If you are unsure on what’s wrong with your unit, then give us a call. (770-906-0521).
Book Now! 770.906.0521 
Location
Send an Email hav.arcservices@gmail.com