Commercial Air Conditioning Service Checklist


Toshiba Air Conditioning

Prevention is always better than solution. Stopping a problem from happening in the first place saves you time, money and hassle, and this applies to your commercial air conditioning system.

We recommend getting your air conditioning system checked regularly by professionals. Here, they’ll check the different areas of your air con system to ensure it’s all working correctly, stopping any problems before they happen. To help you understand what will happen when a professional comes to check, we’ve outlined the most common things that they’ll be doing.


The filters on your air conditioner are one of the most important parts to ensure your system is working correctly and efficiently. Dirty filters can make it harder for the system to work properly, which can mean an increase in your energy bills, as well as there being the potential for expensive repairs if it breaks.

If you have a heating and cooling system then these filters should be changed every four months. If you have a cooling system only, then these should be changed every 6 months.

Evaporator and Condensing Unit Coils

The coils from the evaporator and condensing unit are the main parts of the system. If these become dirty this can make it harder for the system to run, resulting in inefficiency and putting additional strain on these components. Again, these need to be regularly cleaned and this can be done through brushing, vacuuming or wiping to help remove any dirt.

Air Outlet

The air outlets on your air conditioning system can, like the filters and coils, become clogged with dust. This can result in the system running inefficiently, which can result in higher energy bills. These need to be regularly cleaned to remove any dust. As well as this, the air outlets and  louvres should be checked to ensure that they are operating properly.


If your air conditioning system has the equivalent of at least 5 tonnes of C02, then the F-Gas should be checked once a year for leaks. In order for the system to work efficiently, the level of refrigerant gas in the system is important. It is also important to ensure that there are no leaks due to the damage a leak can cause, both to the environment and to those who work in your commercial property.

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