Do you want your air conditioning unit to last? Do you want it to perform year in, year out? Your answer should be yes on both counts. Some simple AC maintenance can keep the system running smoothly. At Air Engineering we get questions about maintenance and how often to do it? The answer to is at least once a year. If you are inheriting an AC system, you should do it immediately.

To maintain your AC system and make it last longer you should:

• Keep it clean
• Fix the bent fins
• Unblock the condensate drain tube
• Clean or replace the filter
• Listen to the machine
• Check the unit is sitting well
• Schedule an appointment

Let’s take a closer look at each point.

Keep it clean

Dust, dirt, animal hair and even human skin, it can all end up in the AC system. A regular run over of the fins, the flaps and the machine itself with a damp cloth will keep it from blocking up. We also recommend using the vacuum, but be careful of doing any damage with the nozzle.

With the external parts you should use a fin comb to clean the unit. You can get a fin comb at most hardware stores, and they will get a lot of the old dirt out of the system.

Fix the bent fins

Bent fins on the inlet side can cause a lot of problems, not least the inefficient running of the air conditioning. Fins may bend from impact but also by the build-up of dirt clogging the grill. Take the cover off the AC machine and look at the grill, chances are you’ll see a lot of bent fins on older models.

Be careful straightening the bent fins. A broken one will cost money to replace. Use a fin comb to straighten the bent ones. A standard dinner knife will also do the job. Do not force the knife in too far, as you may do a lot of damage.

Unblock the condensate drain tube

If you are unsure where this is, you should consult the manual. If you don’t have a manual, ask one of our engineers when you schedule a maintenance call. After locating the tube continue with the cleaning schedule.

Slide the tube off the filter outlet. It may be a good idea to throw it away as it can contain a lot of bacteria. Buy a packet of slime prevention tablets from the hardware store and place one in the outlet. Fit the new, clean condensate tube, and you’re good to go. During the warm weather it is a good idea to replace the tablet about once a month.

Clean or replace the filter

The AC filter is where all the action happens. It can clog quickly and if AC  maintenance is not a regular job of yours, and it should be, then it will definitely need cleaning.

Locate the filter and remove it from the AC machine. Clean it with a vacuum and a damp cloth. If it is beyond cleaning, invest in a new one. Your machine will thank you.

Listen to the machine

Find a quiet time and run the machine. If it is making a lot of noise, then you could have a few problems on your hands. Old fans make a lot of racket, as do blocked filters and bent or broken fins. A new or recently serviced AC system will run silently, and you will have a good, equal flow of air throughout the home.

Call one of our engineers if you hear nothing but noise from your system.

Check the unit is sitting well

We often see AC machines sitting on the lawn by the back window. The owner may have bought the unit and fitted it themselves. It will sink into the grass, and this can affect how well it runs.

We recommend you stand an AC unit on a concrete platform. This will keep it steady and prevent damage during the rainy season.

Schedule an appointment

An engineer will know how the unit should run. Their expert ears and eyes will spot a problem from miles away. A regular visit from an engineer can prevent problems, solve inefficiencies and give you peace of mind coming into the hot days.

Get an AC maintenance schedule running. The investment of regular visits from one of our engineers will repay you over the many long years of quality AC service

Give us a call

We love to talk AC systems and AC maintenance.

Our engineers service all the major brands and only use top-quality parts in our repairs.

Call us today to schedule an appointment.

Special Offers

Get more value from your HVAC contractor. Engineered Air, LLC offers specials that will help you save. Browse our current specials and see for yourself.

More Special Offers

10% OFF service calls for Maintenance Members



This offer is only available for current members of our maintenance program.

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No Trip Charge or Diagnostic Fee!

$125 Value!

Present this coupon to have your trip/diagnostic fee waived with any AC Repair.

This offer must be used during regular business hours 8am-5pm.

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D. Hummel

The technicians are on time and personable. They have always laid out all of my options for me and have never tried to force me into something I wasn’t sure of – for example purchasing a new system. Even my old broken-down piece of garbage was able to be serviced by them back into functioning. I was able to get an appointment quickly and they were able to work with me to get the service done in a timely fashion.

L. Popkin

Twice we needed a split unit air conditioner replaced, and twice these guys were really terrific. I never look for the lowest price, but I have a sense of what is a fair price, and the price they gave me was better than fair. The salesman was terrifically honest, and when I asked him if he would recommend any additional work, he said no. The installers were terrific.

I. Fuentes

Great service!! I had 2 techs come out on different times both told me the same thing. They did not try to sell me any extra services or a new unit. They both went beyond what I expected. They also educated me on a few things Which i found to be true through my own research. Really glad I found them and their prices are very reasonable.

We service, repair, and install all makes and models