Commercial air conditioning units are big systems, built for the big job they have. Compared to a domestic air conditioner they have to cool a much larger area of water, all while battling the same high heats effectively in warmer months. Not only that, but dozens or hundreds of people rely on a commercial air conditioner to do its job effectively, compared to the three or four who might in a residential setting. That’s why it’s so important to be able to recognise the signs that your commercial air conditioning system might be in trouble, or worse need replacing altogether.

Short Cycles

Short cycling is what happens when your air conditioning unit turns itself off shortly after it starts up. It’s a short cooling cycle the system is running because it’s getting too hot, or there is an internal error. This is causing a problem within your system and interrupting it’s ability to cool air. This causes it to shut down. This is one of the more common issues we see, mainly because it’s an easy one to miss, especially if you’re not paying attention to it. This problem can go on for a long time and eventually cause your system to fail, so if you notice it happening, you need to bring in a professional.

Strange Noises

As a general rule, air conditioners do make a bit of noise. But that noise should be minimal – and it definitely shouldn’t be so loud it’s disturbing people. If your air conditioning system is making a racket, or you can hear strange noises like rattling, screeching or clanging, these are fairly sure signs there is something wrong. Now this might just mean something needs repairing, but if it’s a consistent problem, especially if you’ve left it a while before dealing with it, then you may need to invest in a new system.


This might sound odd, but you shouldn’t just replace your air conditioner when it breaks down. All commercial air conditioners have a recommended lifespan, and most tend to last between 10-15 years. The age your air conditioner can reach will depend on a number of things, including if it’s been properly serviced during its life, how well it’s been maintained and how often it’s used. But if your air conditioning unit is at that 10-15 year mark and you’re noticing issues start to creep up, now is the time to get it replaced.

Less Efficient

If your system is reaching the end of its life, it probably won’t stop working overnight. Instead, it will start to work less and less efficiently, costing you more money as it does, until it eventually breaks down. A few signs that this might be the case include:

  • Air flow is not as good as it was
  • Air isn’t as cool
  • Certain zones of the building won’t be cooled properly
  • Water or coolant starts leaking
  • Increasing energy bills despite no change in usage

If you see any of these in your system, it might need replacing.

At Bonus Eventus Maintenance we work with companies to install and maintain air conditioning systems of all shapes and sizes in commercial properties. Our experts can advise you on the right type and size of system for your property, ensure it’s installed correctly and set you up on a regular maintenance plan to prolong the life of your equipment. If you would like to know more, or you think your air conditioning system might need some attention, just get in touch today to book your free consultation.