Eight Reasons Why Your AC Won’t Turn On-And What to Do

Things can get warm fast when your air conditioner won’t turn on in the U.S.. Thankfully, Service Experts Heating, Air Conditioning & Plumbing is here to help you keep your cool, even when your AC isn’t starting properly. Here are eight possible reasons why your air conditioner won’t turn on and how to fix them.

1) Check the Thermostat

The easy explanation for your AC not turning on is a thermostat malfunction. Check to ensure your thermostat is on, set to “cool,” and that the temperature is set to a few degrees lower than the normal ambient temperature of your home. You will also sometimes need to replace the batteries. If that doesn’t solve the issue, the temperature sensor in the thermostat could be inaccurate. A thermostat that can’t read the correct temperature could stop your air conditioner from turning on. Once you’ve discovered that the thermostat is malfunctioning, it’s time to replace it. If you can’t decide on a thermostat that’s right for your residence, ask an Expert to help determine the best choice.

2) Check the Air Filter

Your air filter should be changed every 30-60 days at minimum. You should change them more frequently depending on the number of pets and people living in your home, and the local air pollution levels near your residence. A dirty air filter can impact airflow, causing your air conditioner to freeze and not turn on.

If your air filter looks dirty or you can’t think of the last time you changed it, it’s time to get a new one. If your AC was frozen, wait for it to thaw after changing the filter before turning it back on.

3) Check the Circuit Breaker

Open the electrical panel inside your home and check to see if the circuit breaker connected to your air conditioner is tripped. You can identify if the breaker is tripped if the switch has flipped to the “OFF” position. To resolve this issue, simply flip the breaker so that it’s in the “ON” position.

If your AC continues to trip the breaker after fixing this issue, you could have a serious problem and should get in touch with the Experts at Service Experts Heating, Air Conditioning & Plumbing to stop it from damaging your home or air conditioner.

4) Check the Indoor Shutoff Switch

Often mistaken for a light switch, if your AC won’t turn on, the indoor shutoff switch might have been flipped unintentionally. These switches are usually placed near your furnace, in a closet, crawl space or attic. Once you reach the shutoff switch, make sure it’s in the “OFF” position. If so, simply turn it back on. It’s always a helpful idea to label this switch to prevent anyone from mistakenly turning it off.

5) Check the Outdoor Shutoff Switch

If you or someone else has recently serviced your air conditioner, they might have turned off the external shutoff switch as a safety precaution. First, find the external shutoff switch, which should be near your AC unit. If the switch is in the “OFF” position, simply flip it to allow your air conditioner to turn on.

6) Find the AC’s Reset Button

When your air conditioner won’t turn on, it could simply need to be reset. Not all ACs have a reset button, so first verify if your unit does. If you can find the reset button, press it before attempting to turn your AC on again. If you can’t reach the reset button, manually reset your air conditioner by switching your thermostat off for five to 10 minutes before turning it back on again.

7) Inspect the AC for Ice Buildup

Look over the air conditioner for any icy buildup either on or inside the unit. If you discover ice on your machine, you need to wait for it to thaw before going to start the unit or you risk damaging the AC. Though there are various reasons you could see ice on your air conditioner, it’s always best to call Service Experts Heating, Air Conditioning & Plumbing for a consultation to keep further damage from occurring.

8) Ensure the Condensate Drain Isn’t Clogged

If you don’t find ice on the air conditioner, the condensate drain might be backed up. When clogged, your AC won’t turn on as a safety precaution. To resolve the issue, clean the drain line with suction from a wet/dry vac. Test that you’ve removed the blockage by pouring a small amount of clear water and watching it flow out. For particularly tough clogs, it may be best to call the Experts.

AC Still Won’t Turn On? Call Service Experts Heating, Air Conditioning & Plumbing!

There’s no reason to suffer without air conditioning—contact your local HVAC Experts in the U.S. to help resolve why your AC won’t turn on. Our well- trained technicians can diagnose why your unit isn’t working, and complete a repair or install a replacement. And with Service Experts Heating, Air Conditioning & Plumbing, your satisfaction is guaranteed!*

Contact us at 866-397-3787 to schedule your air conditioning appointment in the U.S. today!

Savings For You

See All Offers Here >

$50 OFF Any Repair

  • Save $50 on a Paid Service
  • Written 100% Satisfaction Guarantee
  • Plus, ask how to save an additional 15% and waive your trip charge!
print

Make No Payments for 30 Days!

  • Upgrade to Worry-Free Comfort with the Advantage Program and make NO payments for 30 days!
print

© 2024 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.