tools for an air conditioner service

Tips for Cleaning Your AC System

With summer coming to an end in Brighton, now is a good time to get a kick start on air conditioner maintenance.

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

We advise having your air conditioning system professionally tuned-up once a year. Why? A clean unit can be more energy efficient, which could save you money on utility expenses.

Routine AC maintenance also helps our technicians locate and take care of small issues before they become expensive problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we do includes:

  • Viewing the blower, motor, drain line and coils
  • Watching pressure and temperature
  • Examining lines, refrigerant totals and connections

You can still have maintenance done this fall—and we can get your furnace prepped for heating season too.

Schedule maintenance now


There’s also some upkeep you can do alone between professional tune-ups. It only takes about an hour to get the grime off your outdoor condenser unit, as well as a few pieces 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 great. That way, you can check your system 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

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

2. Clean the Outside

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

Then run the vacuum to gently clean the metallic fins. These pieces are also called as condenser coils and divert heat away from your equipment.

You need to be considerate of these fragile coils. Misshapen or crumpled fins can affect efficiency.

3. Fix Bent Fins

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

4. Clean the Inside

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

The only coil cleaner you have to have is water. Use slight 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 properly, contact us a call at 720-316-1401.

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 must be replaced every few months, depending on the model you use.

Not sure when you last put in a new one? Pull it out and tilt it toward the light. If light isn’t 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 clean it by pouring diluted bleach through the tube to clean the line. Or you can buy a new tube.

Wash the drain port using a small, round paintbrush. Connect 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 D & D Heating & AC can make your equipment more efficient and help it last longer. We also provide convenient service agreements, so you won’t forget to plan your annual maintenance!

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