tools for an air conditioner service

Tips for Cleaning Your AC System

With summer ending in Rock Hill, now is a great time to get ahead on air conditioner maintenance.

If you haven’t washed it lately, it could be blocked with mud and yard waste. This buildup can reduce your unit’s efficiency and cause it to break down. Or make it wear out more quickly.

We advise having your air conditioning system professionally maintained every year. Why? A clean system can be more energy efficient, which could save you money on electric expenses.

Regular AC maintenance also helps our technicians spot and handle small issues before they become expensive problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we do includes:

  • Taking a look at the blower, motor, drain line and coils
  • Watching pressure and temperature
  • Testing lines, refrigerant levels and connections

There’s still time to have maintenance done this fall—and we can get your furnace prepped for heating season too.

Schedule maintenance now


There’s also some maintenance you can do on your own between professional tune-ups. It only takes about an hour to clean your outdoor condenser unit, as well as several components on your indoor HVAC system.

Related: How Often Should You Expect to Get Air Conditioning Service Done?

How to Clean Your Outside AC Unit

Choose a temperate day to clean your air conditioner. At least 60 degrees Fahrenheit (20 degrees Celsius) is great. That way, you can check the unit once you’ve cleaned it.

You’ll only need a few tools:

  • Wet-dry vacuum and hose with a soft brush attachment
  • Screwdriver
  • Butter knife
  • Damp rag
  • Small, round paintbrush
  • Replacement furnace filter (if necessary)

Related: How AC Repair and Maintenance Can Actually Save You Money

5 Steps to Clean the Outside Unit

1. Turn Off the Power

Switch off the juice to your air conditioner at the breaker box.

2. Clean the Outside

Empty rubbish from the unit. This includes branches, bushes, weeds and grass.

Then turn on the vacuum to cautiously clean the metallic fins. These parts are also known as condenser coils and move heat away from your unit.

You need to be cautious with these delicate coils. Bent or crumpled fins can affect efficiency.

3. Fix Bent Fins

Use a butter knife to rearrange misshapen fins. You can also use a fin comb from an appliance parts retailer. A pro from US Air Heating and Cooling should handle severe damage.

4. Clean the Inside

After taking out the fan, dig out leaves and other yard rubbish. Then mop the inside of the system with a wet sponge.

The only coil cleaner you need is water. Use gentle pressure from a hose nozzle to wash the fins, showering water from the inside out. Replace the fan once you’re completed.

5. Test Your Air Conditioner

Now it’s time to restore power and turn your air conditioner back on. If it’s not working correctly, give us a call at 803-220-0761.

Related: Air Conditioner Service: Pay a Little Now, Save Later

3 Steps to Clean the Indoor Unit

1. Turn Off the Power

Stop the juice to your furnace at the breaker box.

2. Check Your Filter

Furnace filters should be replaced every few months, depending on the type you use.

Unsure when you last checked yours? Pull it out and angle it toward the light. If light isn’t visible, buy a new one.

3. Clean the Inside

Remove the blower door and vacuum up dust.

Then take a look at your air conditioner’s drain line—it’s a flexible plastic tube. If it’s moldy, you can sanitize it by pouring water-down bleach through the tube to clean the line. Or you can replace the tube.

Clean the drain port using a small, round paintbrush. Connect the drain tube and turn the power back on.

Related: How to Keep Your Air Conditioner Running Well Through Fall

Never Forget a Tune-Up Again

Annual air conditioner maintenance from US Air Heating and Cooling can make your equipment more efficient and help it last longer. We also have practical service agreements, so you won’t forget to plan your annual maintenance!

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