Air Conditioning Options

Common Air Conditioning Problems

Published on: November 30, 2020
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Common Problems with Your AC

If you live in the Southeastern states, you know an efficiently working air conditioner is vital during a hot summer. You certainly don’t want to be in a home experiencing air conditioner problems.  Don’t leave your home comfort to chance!  Learn about the most common problems with your AC and ways to prevent them.

Thermostat Problems

An AC unit not turning on or not cooling efficiently is often due to a thermostat problem. If you are having a problem with your AC, it is always advisable to check your thermostat first. If you have an old dial-type thermostat, you may need to replace the batteries. Do you have a new programmable thermostat? It might be on vacation mode.  Make sure the thermostat is in the ‘Cool’ position.  Also, ensure that you set the temperature to a cooler temperature than the current indoor temperature. If it still doesn’t turn on or work, you might need to replace your thermostat.

Clogged and Dirty Filters

Inadequate maintenance of your AC can lead to dirty and clogged filters.  During the cooling season, air filters should usually be replaced every month.  If your air filter becomes too dirty and clogged, it will restrict the airflow through the unit. In turn, this will reduce the ability to cool your home properly. 

Refrigerant Issues

If your AC unit isn’t cooling effectively, your refrigerant may be low, leaking, or inaccurately charged.  The refrigerant in your AC unit must exactly match your manufacturer’s specifications.  If it is undercharged or overcharged, it will impair the running efficiency of your AC. Unfortunately, this isn’t a DIY job.  A NATE certified technician must legally check the refrigerant and make the repairs.  Using an unqualified technician can exacerbate the problem.

Fan Trouble

If your outdoor condenser unit fan or your indoor evaporator coil fan aren’t working correctly, you end up with low airflow and AC issues.  Fans can start to cause trouble if they are covered in debris or too much dirt.  A faulty motor, worn-out belts, and lack of lubrication can also result in fan trouble.  Neglecting fan trouble can lead to electrical control failure. Scheduling annual maintenance can ensure these issues are caught before they become a problem.

Clogged Drains

The moisture that your air conditioner removes should be going into a drain line and then down a condensation drain.  If the line or drain gets clogged, the water can back up and damage your system. During extremely humid weather, it is essential to check for clogged drains regularly.  Left unchecked, you’ll wind up with water leaks and potential mold growth. 

Preventing and Fixing Common Air Conditioner Problems

The best way to prevent common problems with your AC is to adequately maintain your unit.  Change air filters regularly and schedule annual maintenance.  If a problem has already developed, be sure to hire a NATE certified technician to identify and fix the issue correctly.  Air Conditioning Southeast can help you locate an HVAC professional near you.