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Air Conditioning Servicing: How often and what is the process?

When your air conditioning unit isn’t working correctly, this not only tampers with your room temperature and comfort but can also lead to more serious issues regarding health and safety. To know if your air conditioner needs a service check or some replacements, you need to know the signs and all the details surrounding an air conditioning service.

Is an air conditioning service compulsory?

In the UK, there isn’t a strict nationwide mandate that requires regular air conditioning service checks for residential properties. However, there are regulations and guidelines in place regarding the use and maintenance of air conditioning systems to ensure energy efficiency, environmental protection, and overall safety.

The Energy Performance of Buildings Regulations 2007 states that air conditioning systems with an effective rated output of more than 12 kW are inspected regularly, with the first inspection taking place within five years of the installation and at least every five years thereafter. The laws and regulations around air conditioning can change depending on what type of property you’re in, so checking these is absolutely necessary.

How do you know if an air conditioning unit needs service maintenance?

As previously mentioned, a damaged or worn-out unit doesn’t just affect the room temperature, but can also lead to more serious problems such as overheating, poor air quality and toxic chemical release. So how do you know if your unit is in need of a maintenance checkup?

  • Poor cooling output and performance
  • Increased energy bills
  • Strange or rattled noises
  • Odours
  • Low-quality airflow
  • Water leaks
  • Short cycles
  • Ice formation
  • Old or outdated unit

Get in touch with a member of our team with any maintenance enquiries or quotes!

Manufacturer’s recommendations

On many occasions, a simple maintenance check or service from a professional air conditioning technician can solve these issues, and investing in regular checks makes it less likely that these issues will arise. However, in more cases, especially if you have abandoned consistent services, air conditioning units will need to be replaced.

Find out more about signs your air conditioning unit needs replacing here.

What does an air conditioning service involve?

An air conditioning service typically involves a series of maintenance tasks and checks performed on an air conditioning system to ensure its functionality, efficiency, and longevity meet industry and personal standards. The specific components of an air conditioning service can vary based on the type of system, brand, model and what the maintenance team actually offers.

Here are some common tasks that are often included in an air conditioning service:

Filter replacement and cleaning

Dirty or clogged filters can diminish airflow and lower the system’s efficiency. During a service, filters will be cleaned or replaced to ensure optimal air quality and efficiency.

Coil cleaning

The evaporator and condenser coils can collect dirt and debris over time, affecting the system’s efficiency. Cleaning these coils helps maintain proper heat exchange and performance.


The refrigerant levels need to be at the appropriate level for optimal cooling. If the levels are low, it could indicate a leak.

Safety checks

Safety controls and mechanisms are evaluated to ensure the system operates without posing a risk to occupants.

Thermostat calibration

Checking and calibrating the thermostat ensures accurate temperature readings and proper system operation to create a comfortable living or working environment.

Condensate draining

The condensate drain can become clogged with algae, mould, or debris so the drain will need cleaning to prevent such issues.

Electrical inspection

All electrical connections, controls, and components should be inspected to ensure they are functioning properly and safely so the unit can function correctly.

Fan and motor inspection

Fans and motors play a crucial role in air circulation so lubrication, belt checks and overall performance assessments are typically performed.

Seal and ducts

If the system has ductwork, the technician may inspect it for leaks and any water damage.

System efficiency assessment

An air conditioning service may include evaluating the system’s energy efficiency and providing recommendations for improvements to reduce energy costs and consumption.

Lee Jackson Air Conditioning Vehicles

Air conditioning maintenance and repair services

Lee Jackson Air Conditioning provide expert maintenance and repair for a number of air conditioning systems across Nottingham. DerbyLeicester and the rest of the UK. Our team of installers and engineers are well skilled and knowledgeable of all air con units and specialise in top quality brands including:

If you’re looking for an expert to come and look at your unit or set of units, get in touch with our team on 0800 949 9070 and we’ll get you the help you need!