How to Repair Your Home AC

 As the weather starts to heat up, it’s important to make sure that your home air conditioning (AC) unit is functioning properly. If you notice that your AC is not blowing cool air or is making strange noises, it may be time for a repair. While some AC repairs require professional help, there are a few things you can do on your own to troubleshoot and repair your home AC. In this article, we will guide you through the process of repairing your home AC so that you can stay cool and comfortable all summer long.

How to Repair Your Home AC

Common AC Problems

Before we dive into the repair process, let's look at some common problems that may be affecting your home AC:

  • AC not cooling enough
  • AC making strange noises
  • AC leaking water
  • AC not turning on

Step 1: Check the Thermostat

The first thing you should do when troubleshooting your home AC is to check the thermostat. Make sure that it’s set to the correct temperature and that it’s on the right setting (cool instead of heat). If your thermostat is battery-powered, check to see if the batteries need to be replaced. If everything looks good with the thermostat, move on to the next step.

Step 2: Change the Air Filter

If your AC is not cooling enough, it may be because of a dirty air filter. Changing the air filter is an easy and inexpensive fix. Simply locate the air filter in your AC unit (usually located near the air handler) and replace it with a new one. Make sure to choose the correct size and type of filter for your AC unit.

Step 3: Clean the AC Unit

If your AC is making strange noises or is leaking water, it may be because the unit is dirty. Dirt and debris can build up in the AC unit and cause it to malfunction. To clean the AC unit, turn off the power to the unit and remove any visible dirt or debris. You can also use a hose to gently spray down the unit (just make sure not to use too much water).

Step 4: Check the AC Coils

The AC coils are responsible for removing heat from the air in your home. If the coils are dirty or blocked, they won't be able to do their job effectively, which can cause your AC to malfunction. To check the AC coils, remove the access panel on your AC unit and inspect the coils for dirt or debris. If you notice any buildup, use a soft brush to gently clean the coils.

Step 5: Call a Professional

If you've tried all of the above steps and your AC still isn't working properly, it may be time to call a professional. A professional HVAC technician can diagnose and repair any issues with your AC unit.

The Benefits of AC Maintenance

Maintaining your home AC unit can help prolong its lifespan and improve its performance. Here are some benefits of regular AC maintenance:

  • Improved energy efficiency
  • Lower energy bills
  • Reduced risk of breakdowns
  • Improved indoor air quality

The Drawbacks of Neglecting Your AC Unit

On the other hand, neglecting your AC unit can lead to a number of problems, such as:

  • Higher energy bills
  • Poor indoor air quality
  • More frequent breakdowns
  • Shorter lifespan of your AC unit


Repairing your home AC doesn't have to be a daunting task. By following the steps outlined in this article, you can troubleshoot and repair your AC unit on your own. Remember to perform regular maintenance on your AC unit to keep it running smoothly and efficiently. And if all else fails, don't hesitate to call a professional for help.


Q: How often should I change the air filter in my AC unit?

A: It's recommended that you change your air filter every 1-3 months, depending on usage.

Q: Can I clean my AC coils myself?

A: While it's possible to clean your AC coils yourself, it's recommended that you hire a professional to do it. Cleaning the coils requires special tools and expertise.

Q: Why is my AC leaking water?

A: Your AC unit may be leaking water due to a clogged condensate drain line or a faulty condensate pump.

Q: How can I improve the energy efficiency of my AC unit?

A: You can improve the energy efficiency of your AC unit by performing regular maintenance, such as cleaning the coils and changing the air filter. You can also install a programmable thermostat and make sure that your home is properly insulated.