Before You Call

Sometimes there is a simple solution to fixing a heating or cooling system. If your air conditioner or heat isn’t working, use the checklist below to troubleshoot common problems. If your system still isn’t working, or if you’re unsure or uncomfortable troubleshooting, give us a call!

Atlas Butler is the home of the Same-Day Comfort Pledge. Call us anytime, day or night, weekends or holidays, and a technician will be out to get you up and running the same day without any after-hours or overtime service fees.

My air conditioner isn’t working.

  • Check the thermostat. Make sure it is set to “cooling” or “auto” and set to the desired temperature.
  • Check the air filter. A dirty air filter can reduce the airflow coming out of the register. Replace with a new, clean filter.
  • Are all registers open and unobstructed?
  • Check the power switch near each unit. For an indoor unit, the switch should be near the unit. It should be clearly marked, but it may look like a regular light switch. If it’s off, turn it on.
  • Check the fuse in the circuit breaker.

My heat isn’t working.

  • Check the thermostat. Make sure it is set to “heating” or “auto” and set to the desired temperature.
  • Check the air filter. A dirty air filter can reduce the airflow coming out of the register. Replace with a new, clean filter.
  • Are all registers open and unobstructed?
  • Check the power switch near each unit. For an indoor unit, the switch should be near the unit. It should be clearly marked, but it may look like a regular light switch. If it’s off, turn it on.
  • Check the fuse in the circuit breaker.
  • If you have a gas furnace, check that the gas service has not been terminated. Gas companies will turn off service if a leak is detected, sometimes without notice.
  • If you have a gas furnace, make sure the gas control valve to the furnace is open.
  • If you have an older gas furnace with a pilot light, make sure it is lit.
  • If you have a newer gas furnace with electric ignition, check the display. The panel should have an explanation of the codes on the display.