The Problem

If your central air conditioning unit is running but no air is coming out, there are a few potential causes. The most common cause is a clogged air filter. A clogged air filter will restrict air flow, causing your AC unit to work harder and run longer without cooling your home.

Another potential cause is a frozen evaporator coil. This can happen if your air filter is too dirty or if the air flow in your home is restricted. A frozen evaporator coil can also be caused by a thermostat that is set too low. If you have a frozen evaporator coil, you will need to turn off your AC unit and thaw the coil before restarting your unit.

Another potential cause of your AC unit running but no air coming out is a faulty compressor. The compressor is responsible for circulating refrigerant through your AC unit. If the compressor is not working properly, the refrigerant will not circulate and your AC unit will not be able to cool your home.

There can be other causes of no cool air coming from your air conditioner. The first thing you should do is check your air filter. If your air filter is clogged, change your air filter. If your air conditioner is still not cooling your house, then call a professional for help.

Reason #1: Air Filter is Clogged

If you have a clogged air filter, you need to change it immediately. If your air filter is clogged, your AC will work harder to cool your house and it won’t be able to keep up. This could lead to high electricity bills and a broken down AC unit.

Reason #2: Air Ducts are Leaking

If you have a leaking air duct, it could be that your house is leaking air into the attic or cast, causing your air conditioner to run more and use more energy. To fix this problem, you need to find the leaking air duct and seal it up so it doesn’t leak anymore. If you can’t find the leak, then call a professional to help you find it.

Reason #3: Fan Belts are Worn Out

Your house’s fan belts can get worn out over time. If you have a worn-out fan belt, then you need to replace it. If you don’t replace it, then your house won’t be cooled properly and your AC will use more energy than it should be using.

Reason #4: Clogged Air Filters

Your air filters can become clogged over time. If you have clogged air filters in your house, then your AC won’t be able to carry all the dirt and dust out of your house, causing your air conditioner to run more and use more energy. If you have clogged air filters in your house, then you need to clean them up.

Reason #5: Broken Air Ducts

If you have broken air ducts in your house, then your AC won’t be able to carry all the dirt and dust out of your house, causing your air conditioner to run more and use more energy.

Reason #6: Leaky Ducts

If you have broken air ducts in your house, then your AC won’t be able to carry all the dirt and dust out of your house, causing your air conditioner to run more and use more energy.

Reason #7: Peeling Insulation

Poor insulation can cause your air conditioner to run more and use more energy. Your air conditioner will work better if it has an insulation blanket.

Reason #8: Dirty Evaporator Coil

Dirty evaporator coil can also cause your air conditioner to run more and use more energy. If you have this kind of problem, then you need to clean up the evaporator coil.

Reason #9: Dirty AC Filter

If you have this kind of problem, then you need to clean up the evaporator coil. If you have this kind of problem, then you need to clean up the air filter.

Reason #10: Clogged Drain Line

If you have this kind of problem, then you need to clean up the clogged drain line. If you have this kind of problem, then you need to clean up the AC drain pan.

Reason #11: Dirty Drain Pan

If you have this kind of problem, then you need to clean up the dirty drain pan. If you have this kind of problem, then you need to clean up the evaporator coil.

Reason #12: Leaking Freon

If you have this kind of problem, then you need to clean up the leaking freon.

Reason #13: Air Duct Blockage

If you have this kind of problem, then you need to clean up the air duct blockage.

Reason #14: Loose Wiring

If you have this kind of problem, then you need to clean up the loose wiring. If you have this kind of problem, then you need to clean up the AC unit.

Reason #15: Improper AC Charging

If your AC unit is not properly charged, then you need to charge it properly. If your AC unit is not properly charged, then you need to check the thermostat. If your AC unit is not properly charged, then you need to clean up the thermostat.

Reason #16: Dirty Air Filter

If your air filter is dirty, then you need to clean it. If your air filter is clogged, then you need to clean up the AC unit.