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Having to call from air conditioner repairs can be costly. Because of this, most homeowners realize how important it is to maintain their unit regularly.

Unfortunately, even with proper and routine maintenance, issues may still occur. Knowing what the most common AC problems are can help you prevent them.

Keep reading to find out what these problems are.

1. The Filter

One reason AC units aren’t working properly is that the filter is dirty or clogged. It’s best to know and follow instructions from the unit’s manufacturer to determine how often the filter should be changed.

Some units require monthly changes, while others only require this every three months. There are also reusable filters that need to be cleaned whenever they are dirty.

During an AC tune up, you can find out for sure how often your filter should be changed. This is important because dirty filters may reduce the airflow and cause your unit to freeze.

2. Water Leaks

If water leaks from the indoor unit, maintenance are overdue. One reason this happens is if the condensate drain is clogged because of fungi or algae. This may result in water backing up the pipe and into your home.

Another reason is if your condensate pump breaks down. At this point, the part must be replaced.

3. Strange Sounds

Your air conditioner may make different sounds based on the issue. There are several reasons your AC produces these sounds.

For example, if there is a hissing noise, it is likely due to a refrigerant leak. Clicking sounds when you turn off and on your unit could be a relay problem. Banging, rattling, or thumping sounds may indicate a problem with the motor assembly or blower.

The fan or compressor motor can create a screeching sound, and banging noises are usually caused by problems with the blower motor or assembly. An electrical issue will create a buzzing sound.

If you notice any of these issues, calling for service is best to make sure the problem doesn’t get worse.

4. The Thermostat

Another simple fix is to ensure your thermostat is turned on. You should also check to see if it is level, clean inside, and not affected by natural light.

Check what setting you have it on, too. If issues continue, another issue may be to blame.

5. Worn Contactor

In your AC unit, contactors are used in the compressor, the condenser fan motor, and the blower motor. They create the electrical connection that starts the compressor and motors. If pitting or arcing occurs on the contactor, the electric current may not be able to start the motors.

Now You Know the Most Common AC Problems

When it comes to common AC problems, there are more than a few that can occur. Knowing what they are will help you with this.

If you are searching for more information and components for your house and home, be sure to check out other information on our site.