tools for an air conditioner service

Tips for Cleaning Your AC System

With summer coming to an end in Robstown, now is a good time to get ahead on air conditioner maintenance.

If you haven’t washed it this year, it could be full of dirt and yard refuse. This accumulation can decrease your unit’s efficiency and cause it to stop working. Or make it wear out sooner.

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

Routine AC maintenance also helps our technicians discover and address slight issues before they develop into 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
  • Confirming pressure and temperature
  • Testing lines, refrigerant amounts and connections

There’s still time to 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 maintenance you can do by yourself between professional tune-ups. You only need about an hour to clean your outdoor condenser unit, as well as a few components on your indoor HVAC system.

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

How to Clean Your Outside AC Unit

Choose a warm day to scrub your air conditioner. At least 60 degrees Fahrenheit (20 degrees Celsius) is best. That way, you can run your system once you’ve cleaned it.

You’ll only need a handful of 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

Take out rubbish from the equipment. This includes branches, bushes, weeds and grass.

Then run the vacuum to cautiously clean the metallic fins. These pieces are also known as condenser coils and divert heat away from your system.

You need to be cautious with these fine coils. Warped or crinkled fins can affect efficiency.

3. Fix Bent Fins

Use a butter knife to rearrange warped fins. You can also use a fin comb from an appliance parts store. A pro from McNatt Inc should take care of large amounts of damage.

4. Clean the Inside

After taking out the fan, fish out leaves and other yard litter. Then wipe the inside of the system with a wet sponge.

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

5. Test Your Air Conditioner

You can now restore power and turn your air conditioner back on. If it’s not operating like it should, give us a call at 361-247-0605.

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 should be replaced every several months, depending on the model you use.

Not sure when you last put in a new one? Remove it and hold it up to the light. If there’s no light visible, buy a new one.

3. Clean the Inside

Remove the blower door and vacuum up dust.

Then inspect your air conditioner’s drain line—it’s a supple plastic tube. If it’s moldy, you can sanitize it by flowing thinned bleach through the tube to clean the line. Or you can replace the tube.

Scrub 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 McNatt Inc can make your system more efficient and help it last longer. We also provide convenient service agreements, so you won’t forget to plan your routine maintenance!

Back To Blog