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23 March 2014

What To Do If Your AC Is ON But Not Blowing Cold Air

By Manda Plotzker


If it is raining out and the humidity is rising along with the heat there is a good possibility that your air conditioning unit can ice up. When it does your home will heat up quickly. The common misconception is that when your air conditioner is already running to turn the thermostat colder. When your AC is allowed to run low on refrigerant it can cause the compressor to gring much like a car that is low on oil. It will do this until one day it will just over heat and those metal shavings cause from grinding clog up the system and seize up the compressor.

The common misconception is that when your air conditioner is already running to turn the thermostat colder. Maintaining your unit really shouldn't take up much of your time. When you find yourself vacuuming your home vacuum your air filter. This could be the single most important thing you do for your unit. Since your unit is sucking air in and filtering, it's a good idea to step outside now and then and wipe down the outside fins as well.

The other issues that we find when the evaporator coil is iced over is the coils are covered with tiny lint and dust particles that cause a restriction in air flow. This restriction happens all the time but is exacerbated by the moisture that is collected but this lent and dust.

Some things to troubleshoot before calling for service include whether the unit is blowing out cool air into the room. Is the thermostat set to cool? Also, go out to your fins and see if they are sucking air in. If all of those things seem fine go and see if your machines float switch is floating. If the float switch is floating this could indicate a drainage problem. If you use your shop vac to suck out any clogs and it's still not better you will need air conditioning repair. Troubleshooting can keep you from paying for service calls when it's something silly that is wrong.

Low refrigerant can also cause a air conditioner to ice up. Some homeowners never notice a difference until the humidity climbs. Most air conditioning systems will work just fine on low refrigerant until the stop working all together. In cases like this a brief interruption in home comfort caused by moist air can save you thousands in repair cost latter.




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