Depending on different factors average life of ac lasts from 12-20 years on average. The factors that will determine the lifespan of your air conditioner are:

  • The quality of the air conditioning installation
  • The quality of your air conditioner unit
  • The way you have been using your unit
  • The quality of the air conditioner maintenance

As you can see, the first thing you need to do is to pick a good air conditioner and have it installed by an expert. It is not legal or recommendable to do your own aircon installation because you can increase the fire hazard in your home and surroundings.

Air Conditioner Lifespan
Central Air Conditioner System Split Air Conditioner System
12-15 years 15-20 years

You need a certified air conditioning installer and you will find the best one on Service Seeking. Don’t worry about the price of air con installation because you can ask for quotes even before you hire somebody to do this work for you.

Get air con installation quotes, discuss the job in question and talk to many professionals before you decide on one. Once you do, you will have your unit installed in a way that guarantees its longest possible lifespan.

Now, it is the question of the rest of the factors. Not all the air conditioners are the same. Moreover, not all the air conditioning systems are the same. Let’s start with the central air conditioning systems.

Also Read: Air Conditioner Maintenance: A Homeowners Guide

What Is the Average Life of a Central Air Conditioning System?

You can expect your central air conditioning system to last somewhere between 12 and 15 years. To ensure that it reaches it best possible lifespan, you need to be certain that its capacity matches the space that it cools.

Mismatching the capacity and the space means that the central air conditioning will work overtime and that will cause faster and more severe wear and tear. This usually happens when the system is too big for the space it is supposed to be cooling down.

The central AC works until the space is cooled down and then it automatically stops. Soon enough, when the temperature rises, it gets turned on. A powerful system used on a small space will, consequently, turn on and off all the time and that will be the end of it.

The first and the most expensive part to go will probably be the compressor. That is the part of the AC that suffers the most when the frequent on and off happens.

To make the most of your central AC system, find an expert that will help you choose the adequately sized unit and who will install it properly.


What Is the Life of Split System?

The split system air conditioners can last up to 20 years. On average, they are longer lasting than the central system air conditioning. How come? Two things:

  • Ductless system
  • Inverter technology

Besides the mismatched capacity of the system and the space it needs cooling, there are two other factors that can shorten the lifespan of this type of central system:

The evaporator coils that are dirty will get plugged up which means that will have to work extra hard. That always leads to early malfunctions and issues. The improperly sized air ducts put more pressure on the compressor and that’s what makes it break down.

Split system air conditioning doesn’t have these types of problems and that is why they last longer. They are ductless which means no issues with the air ducts and they have inverter systems (in most cases) which means that the compressor can vary in speed and that eliminates the “turn on turn off” problem.

How Long Does an AC Compressor Last?

The central system compressors last for about 10-15 years. You can expect those compressors in the inverter systems to last even longer.

Since this is one of the most expensive parts of your air conditioner, people rarely opt or replacing the compressors and usually replace the entire unit when the compressor dies.

During a decade, usually a more efficient and less expensive air conditioning devices are available so it makes little sense to repair the old one.

You can guess that your compressor is about to die on you when you start noticing the following signs:

  • Decreased cooling ability
  • Leaking and noises
  • Weak airflow
  • Reduced cycles