Tips for Cleaning Your AC System

September 20, 2019

With summer winding down in Ronkonkoma, now is a great time to get a kick start on air conditioner maintenance.

If you haven’t cleaned it lately, it could be blocked with dust and yard refuse. This accumulation can decrease your unit’s efficiency and cause it to malfunction. Or require replacement more quickly.

We recommend having your air conditioning system professionally serviced every year. Why? A clean system can be more energy efficient, which could save you money on utility costs.

Routine AC maintenance also helps our technicians locate and handle minor issues before they become expensive problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we complete consists of:

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

You can still have a tune-up 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 by yourself between professional tune-ups. You only 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 best. That way, you can check your equipment once you’ve cleaned it.

You’ll only need a handful of items:

  • 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

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

2. Clean the Outside

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

Then run the vacuum to gently clean the metallic fins. These parts are also referred to as condenser coils and move heat away from your system.

You need to be considerate of these fine coils. Bent or crumpled fins can affect efficiency.

3. Fix Bent Fins

Use a butter knife to rearrange warped fins. You can also get a fin comb from an appliance parts store. A pro from Cool Power LLC should take care of severe damage.

4. Clean the Inside

After removing the fan, dig out leaves and other yard waste. 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 rinse the fins, spraying water from the inside out. Put the fan back in 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 running correctly, reach out to us a call at 631-246-4029.

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

3 Steps to Clean the Indoor Unit

1. Turn Off the Power

Cut the power to your furnace at the breaker box.

2. Check Your Filter

Furnace filters should be changed every couple of months, depending on the kind you use.

Can’t remember when you last put in a new one? Remove it and hold it up to 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 supple plastic tube. If it’s moldy, you can clean it by draining diluted bleach through the tube to flush the line. Or you can buy a new tube.

Clean 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 Cool Power LLC can make your equipment more efficient and help it last longer. We also provide practical service agreements, so you won’t forget to plan your annual maintenance!