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

Things can get stuffy fast when your air conditioner won’t turn on in Buffalo. Thankfully, Sunbeam Service Experts is here to help you remain cool, even when your AC isn’t running properly. Here are eight typical 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 issue. Double check your thermostat is on, set to “cool,” and that the temperature is set to a few degrees colder than the normal ambient temperature of your home. You may also need to replace the batteries. If that doesn’t solve the issue, the temperature sensor in the thermostat may be inaccurate. A thermostat that can’t read the correct temperature could prevent your air conditioner from turning on. Once you’ve verified that the thermostat is faulty, it’s time to replace it. If you can’t decide on a thermostat that’s right for your residence, speak with an Expert to help determine the best choice

2) Check the Air Filter 

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

If your air filter looks dirty or you can’t recall the last time you changed it, it’s time to replace it with 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 moved 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 may have a serious problem and should contact the Experts at Sunbeam Service Experts to keep 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 could have been flipped on accident. These switches are typically found near your furnace, in a closet, crawl space or attic. Once you reach the shutoff switch, check to see if it’s in the “OFF” position. If so, just turn it back on. It’s always a helpful idea to label this switch to prevent anyone from mistakenly switching it off. 

5) Check the Outdoor Shutoff Switch 

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

6) Locate 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 determine if your unit does. If you can find the reset button, push it before going to turn your AC on again. If you can’t locate the reset button, manually reset your air conditioner by shutting your thermostat off for five to 10 minutes before turning it back on again. 

7) Inspect the AC for Ice Buildup 

Check 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 defrost before attempting to start the unit or you risk damaging the AC. Though there are various reasons you may see ice on your air conditioner, it’s always smartest to call Sunbeam Service Experts for a consultation to prevent 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, unclog the drain line with suction from a wet/dry vac. Check that you’ve fixed the blockage by pouring a small amount of clear water and watching it flow out. For particularly tough clogs, it might be best to call the Experts. 

AC Still Won’t Turn On? Call Sunbeam Service Experts! 

There’s no reason to suffer without air conditioning—reach out to your local HVAC Experts in Buffalo to help resolve why your AC won’t turn on. Our fully trained technicians can diagnose why your unit isn’t working, and complete a repair or install a replacement. And with Sunbeam Service Experts, your satisfaction is guaranteed!* 

Contact us at 716-427-6807 to schedule your air conditioning appointment in Buffalo today! 

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