tools for an air conditioner service

Tips for Cleaning Your AC System in Waterloo

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

If you haven’t taken care of it recently, it could be full of dust and debris from your yard. This buildup can decrease your unit’s efficiency and cause it to malfunction. Or make it wear out sooner.

We recommend having your air conditioning system professionally serviced every year. Why? Clean equipment can be more energy efficient, which could save you money on energy expenses.

Regular AC maintenance also helps our technicians discover and handle minor issues before they develop into high-priced problems.

Related: How to Keep Your Air Conditioner from Failing

Some of the work we perform includes:

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

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

Schedule maintenance now


There’s also some maintenance you can do alone between professional tune-ups. You only need about an hour to wash your outdoor condenser unit, as well as a few 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 warm 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 couple 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

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

2. Clean the Outside

Remove rubbish from the equipment. 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 transfer heat away from your system.

You need to be cautious with these delicate coils. Warped or crushed fins can affect efficiency.

3. Fix Bent Fins

Use a butter knife to straighten bent fins. You can also buy a fin comb from an appliance parts store. A pro from Cronin-Verheul Heating & A/C Ltd should fix severe damage.

4. Clean the Inside

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

The only coil cleaner you should use is water. Use light pressure from a hose nozzle to clean the fins, spraying water from the inside out. Put the fan back in once you’re completed.

5. Test Your Air Conditioner

You can now restore power and turn your air conditioner back on. If it’s not operating correctly, contact us a call at 519-664-0600.

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 changed every few months, depending on the kind you use.

Unsure 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 dirty, you can clean it by flowing water-down bleach through the tube to flush the line. Or you can buy a new tube.

Wash the drain port using a small, round paintbrush. Connect the drain tube and switch 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 Cronin-Verheul Heating & A/C Ltd can make your equipment more efficient and help it last longer. We also offer practical service agreements, so you won’t forget to plan your annual service!

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