How-To

30 Days of Preparing for Spring Storms and the Stinging Heat of Summer DAY 23: 10 Steps to Perform Maintenance on your AC Unit

Picture shows a green a/c unit outside a white house.

Most heat-related injuries and deaths occur because people have lack of access to adequate air conditioning. Remember from yesterday’s post, when it is 90 degrees Fahrenheit or hotter, electric fans do not help cool the body. Today, make sure your air conditioning unit is in tip-top shape and ready for the upcoming summer months.

Picture shows a green a/c unit outside a white house.
Today, make sure your AC unit is in tip-top shape and ready for the upcoming summer months.

A dirty AC unit not only works inefficiently, but can also break causing costly repairs and days without cool air. Now is the perfect time to perform a “spring cleaning” on your air conditioning unit’s condenser and replace the filters inside your house. You will need work gloves, a screwdriver and a garden hose to perform this simple maintenance.

  1. Turn the power off to the air conditioner’s condenser—this is the unit sitting outside your house. Wait 30 minutes.
  2. While waiting, change the filters inside your home.
  3. Clear out dust and debris that has collected in accessible ductwork.
  4. Remove the top grate from the condenser to access the compressor’s fins.
  5. Check for debris inside the coil’s cylinder and remove.
  6. Hose the outside of the coil down from top to bottom with your garden hose, being careful not to push any debris into the coils.
  7. Spray water from the inside top to bottom of the compressor.
  8. Replace the top grate.
  9. Remove shrubs, dead leaves, woodpiles and other yard debris from around the compressor.
  10. You may now turn the power back on to the unit.

Have an HVAC professional check the coolant levels. In the area where I live, it costs about $100 for a professional to perform a routine maintenance and cleaning.

Are you an HVAC professional? If so, please share your advice with others in the comment section.

The Mission of Cheaper Than Dirt!'s blog, The Shooter's Log, is to provide information—not opinions—to our customers and the shooting community. We want you, our readers, to be able to make informed decisions. The information provided here does not represent the views of Cheaper Than Dirt!

Your email address will not be published. Required fields are marked *

Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. Please be respectful of others. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. All comments are held for moderation and will appear after approval.