tools for an air conditioner service

Tips for Cleaning Your AC System

With summer ending in Florissant, now is a good time to get a kick start on air conditioner maintenance.

If you haven’t washed it lately, it could be blocked with dirt and debris from your yard. This accumulation can reduce your unit’s efficiency and cause it to malfunction. Or make it wear out sooner.

We suggest having your air conditioning system professionally maintained annually. Why? Clean equipment can be more energy efficient, which could save you money on utility bills.

Consistent AC maintenance also helps our technicians discover and handle slight issues before they become expensive problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we complete includes:

  • Inspecting the blower, motor, drain line and coils
  • Confirming pressure and temperature
  • Testing lines, refrigerant levels and connections

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

Schedule maintenance now


There’s also some work you can do alone 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 mild day to scrub your air conditioner. At least 60 degrees Fahrenheit (20 degrees Celsius) is best. That way, you can check the unit once you’ve cleaned it.

You’ll only need a few things:

  • 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 power to your air conditioner at the breaker box.

2. Clean the Outside

Take out waste from the unit. This includes branches, bushes, weeds and grass.

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

You need to be considerate of these fragile coils. Warped or crumpled fins can impact efficiency.

3. Fix Bent Fins

Use a butter knife to rearrange warped fins. You can also get a fin comb from an appliance parts retailer. A pro from B & B Heating & Cooling should fix large amounts of damage.

4. Clean the Inside

After extracting the fan, dig out leaves and other yard litter. Then clean the inside of the unit with a wet rag.

The only coil cleaner you need is water. Use light pressure from a hose nozzle to wash the fins, spraying water from the inside out. Reinstall the fan once you’re done.

5. Test Your Air Conditioner

Now it’s time to restore power and turn your air conditioner back on. If it’s not operating like it should, contact us a call at 314-325-7552.

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

3 Steps to Clean the Indoor Unit

1. Turn Off the Power

Turn off the power to your furnace at the breaker box.

2. Check Your Filter

Furnace filters need to be exchanged every several months, depending on the type you use.

Unsure when you last put in a new one? Take it out and tilt it toward the light. If there’s no light visible, replace it.

3. Clean the Inside

Remove the blower door and vacuum up dust.

Then examine your air conditioner’s drain line—it’s a pliable plastic tube. If it’s scummy, you can clean it by flowing thinned 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 B & B Heating & Cooling can make your equipment more efficient and help it last longer. We also have convenient service agreements, so you won’t forget to schedule your routine maintenance!

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