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Why Is Your Air Conditioner Not Blowing Cold Air

An air conditioner is essential in beating the heat during summer.  However, when your air conditioning unit fails to blow cold air, it is an indicator of a problem.

An AC repair Dallas technician can determine the source of the problem. An air conditioning unit that fails to blow cold air indicates problems that only a licensed technician can identify. There are many reasons your AC unit no longer blows cold air.

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Why Is Your Air Conditioner Not Blowing Cold Air

Incorrect Thermostat Setting

There is no reason to panic once you find out that your air conditioner is no longer capable of blowing cold air. It might have to do with the wrong thermostat setting. Your thermostat needs to be set to ‘on’.

Avoid setting it to ‘auto’ as this can cause your unit to stop blowing cold air. If you have figured out that the problem is with the thermostat setting, you can solve the problem by adjusting the setting. It needs to be set to “on” so your unit will start blowing cold air again.

Ensuring that your thermostat has the right setting will prevent your unit from working harder. A thermostat that has the correct setting will save you money on your energy bills.


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Dirty Air Filter

Your air conditioner needs to work double-time when airflow is restricted. A dirty air filter blocks proper airflow, making it difficult for air to come through your vents. The clogged or dirty air filter needs to be replaced so you can have good indoor air quality.

If you consider installing a new filter, be sure to check your current filter first. Examine the filter by taking it out. Hold it up where there is natural sunlight and see if the light can pass through. You will need filter replacement if the light is unable to pass through both sides of your filter.

You can choose a reusable filter so you do not have to throw it away as soon as it gets dirty. This type of filter can still be used several times. When using your filter multiple times, be sure to clean it with a soft-bristled brush. Your filter also needs to have the correct dimension so it fits perfectly. Ask your HVAC system manufacturer for the recommended size.

Clogged Outside Unit

Your condenser or outside unit is an essential part of your air conditioner. It is intended for dissipating heat that has been extracted from your home through the evaporator. Once the outside unit gets dirty, it will be difficult for cool air to make it’s way back inside your home.

You can address this problem by making sure that you schedule an appointment with a technician to check your outside unit. Leaves, debris, and dirt can cause your unit to become inefficient. You can get rid of dirt and debris with the use of a portable air compressor.

The air compressor can get rid of any buildup on your outside unit. Once you complete the cleaning job, make it a habit to keep your outside unit clean. Consider setting up a wooden fence to protect your condenser from getting dirty.

Low Refrigerant

Your unit can also be low on refrigerant which is why it is not blowing cold air. An indicator that your air conditioner is low on refrigerant is when your unit is blowing warm air. Higher energy bills even if you have the same consumption also signal a problem.

In addressing a low refrigerant, you should call a repair technician to find out why your air conditioner is low on refrigerant. A licensed HVAC technician is knowledgeable in refilling your refrigerant safely.

When your air conditioner is adequately charged, they will also check it for leaks. One reason refrigerant levels are getting low is because of unknown leaks. Never take problems with refrigerants for granted as they can lead to something serious. Contact an air conditioner technician to get the problem fixed.

If you are heavily relying on your air conditioner to keep your home cool, it needs to be in good condition. Once you suspect a problem with your unit as it is no longer blowing cold air, call Hooper Plumbing and Air Conditioning to check the problem. What you perceived to be a simple issue might cause serious damage to your unit.


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