Air conditioners are sturdy things that can last 10 – 15 years, depending on brand, model, and most importantly, how you treat it. We cannot do without air conditioning, when the temperature soars sky high. But, there are 5 things, if you do them, you would cut a strong air conditioning unit’s life span pretty short; say by 6 – 7 years.


As we know that air conditioners are usually expensive, we take it as an investment to ensure a comfortable and cool indoor living space. So, here are 5 things you should know that can make your air conditioner inefficient:

1. Poor maintenance

We tend to take care of every investment we make, why not the same for your air conditioner? Getting a highly reliable and expert technician to have it checked at least once in a year is a must. This helps the air conditioning unit to perform efficiently, as well as prolongs its life.

When you hire these professionals, they do a scheduled maintenance work twice in a year, one each at the start of summer and winter months. They clean the air conditioning system and check for any issues that may arise in future, as well as do repair works where needed.

So, when you do the math, two visits a year from the specialized technician to service the AC unit is significantly lower, than having to buy and install a brand new air conditioner!

2. Ignoring dirty filters

Most air conditioner manufacturers and expert HVAC technicians recommend that you change air filters at least 4 times a year. If you ignore the dirty filters, your air conditioner will operate in an inefficient manner.

Air flow inside the unit will not be smooth or easy. It will be much difficult for air to reach evaporator coil resulting in decreased amount of cool air. This also means that the compressor will have to work much harder, which will make it heat up real fast.

Dirty air filters make the unit work harder, and use more energy (not good for your pocket).

3. Running the unit all the time & playing around with temperature

No matter how strong an air conditioner is, if you abuse it, it’s going to get weakened.

There are a number of things you can do to help the unit function efficiently, like pulling in the curtains during the day, keeping doors closed, and using electrical appliances when it gets cool outside, as they also heat up your house. So, you can give your air conditioning system the rest it needs.

You should also try to maintain a steady temperature and not keep/ change it from highs and lows too often. If not, it will make the air conditioner work harder, to regulate the temperature you want. This leads to faster wear and tear of the unit, cutting its life span.

4. Not doing an energy audit

Before you buy and install an air conditioning unit, your home needs to be checked for proper insulation. This is done to see if there are any leakages. A lot of energy loss occurs because of conditioned air escaping from these leakages in both cases of heating and cooling.

Another thing that is done in energy audit is sizing up the unit. It should be done to check whether or not the unit will work efficiently to cool a particular space.

If a unit is too small for the area needed to be cooled, it’ll have to work harder, use more energy and have to be in constant use. On the other hand, a large unit will still use the standard energy required for it to function properly, which is quite high for a small space.

Eventually, your air conditioner will get destroyed from working harder and inefficiently. That’s why not doing an energy audit by a trustworthy air conditioner contractor will cost you a lot of money in the long run.

5. Icing on the unit

Icing on the cake is good, but icing on your AC only bears bad news. When you are not careful about using an AC unit, chances are that there is going to be ice build-up in the system. For example – leaving doors and windows open, while the air conditioner is trying to cool the house.

Other things that can lead up to an ice build-up are low level of refrigerant, using a small unit to cool a large space, or a malfunctioning blower motor which restricts the air flow across the evaporator coil causing the said coil to become too cold leading it to freeze.

Regular maintenance and repair of air conditioner unit can really do the trick for you, instead of having it replaced completely.

These are a few reasons (well 5 to be exact) that will make your air conditioning unit inefficient, and why you should take good care of it, which is to ensure that it works hard, and efficiently cools your house to give you a comfortable indoor living experience.