tools for an air conditioner service

Tips for Cleaning Your AC System in Saint Charles

With summer winding down in Saint Charles, now is a good time to get a head start on air conditioner maintenance.

If you haven’t cleaned it lately, it could be full of dust and yard refuse. This accumulation can reduce your unit’s efficiency and cause it to break down. Or require replacement sooner.

We suggest having your air conditioning system professionally serviced once a year. Why? A clean unit can be more energy efficient, which could save you money on electric costs.

Consistent AC maintenance also helps our technicians spot and take care of small issues before they turn into costly problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we do involves:

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

It’s not too late to have service done this fall—and we can get your furnace ready for heating season too.

Schedule maintenance now


There’s also some upkeep you can do on your own between professional tune-ups. You just need about an hour to wash your outdoor condenser unit, as well as several parts on your indoor HVAC system.

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

How to Clean Your Outside AC Unit

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

You’ll only need a handful of 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

Cut the juice to your air conditioner at the breaker box.

2. Clean the Outside

Remove rubbish from the system. This includes branches, bushes, weeds and grass.

Then turn on the vacuum to slowly clean the metallic fins. These components are also called as condenser coils and move heat away from your equipment.

You need to be considerate of these fragile coils. Bent or crushed fins can impact efficiency.

3. Fix Bent Fins

Use a butter knife to adjust warped fins. You can also use a fin comb from an appliance parts store. A pro from Air Alliance Team should take care of extensive damage.

4. Clean the Inside

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

The only coil cleaner you should use is water. Use slight pressure from a hose nozzle to wash the fins, spraying water from the inside out. Replace the fan once you’re done.

5. Test Your Air Conditioner

It’s safe to restore power and turn your air conditioner back on. If it’s not working like it should, give us a call at 636-229-1544.

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

3 Steps to Clean the Indoor Unit

1. Turn Off the Power

Cut the juice to your furnace at the breaker box.

2. Check Your Filter

Furnace filters need to be replaced every few months, depending on the model you use.

Not sure when you last replaced yours? Take it out and hold it up to the light. If there’s no light visible, replace it.

3. Clean the Inside

Remove the blower door and vacuum up dust.

Then inspect your air conditioner’s drain line—it’s a pliable plastic tube. If it’s scummy, you can sanitize it by pouring diluted bleach through the tube to sanitize the line. Or you can get a new tube.

Scrub the drain port using a small, round paintbrush. Reconnect the drain tube and restore power.

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

Never Forget a Tune-Up Again

Annual air conditioner maintenance from Air Alliance Team can make your system more efficient and help it last longer. We also offer handy service agreements, so you won’t forget to plan your routine service!

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