Air Conditioner Maintenance

air conditioning maintenance midlands

An air conditioner‘s filters, coils, and fins need regular maintenance for the unit to work effectively and efficiently throughout its lifetime. Neglecting this maintenance will lead to a slow decline in the performance of the AC Unit. 

Air Conditioner Filters

The most important air conditioner maintenance‘ task to ensure its longevity is to regularly replace or clean its filters. Blocked filters stop normal airflow and reduce the system’s efficiency. With the airflow obstructed, any air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Swapping out a dirty, clogged filter with a clean one will lower your air conditioner’s energy consumption by approximately 5% to 15%.

In regards to central air conditioners, filters are generally located somewhere along the return duct’s length. Common filter locations can be found in walls, ceilings, furnaces, or in the air conditioner itself. Room air conditioners have a filter mounted in the grill that often faces into the room.

There are, however, some filters that are reusable; although others must be replaced. They are available in a variety of types. Clean or replace your air conditioning system’s filter(s) every month or two during the cooling season. Bear in mind that the filters may need more frequent attention if the unit is constantly in use or is subjected to dusty environments.

Air Conditioning Coils

The air conditioner’s evaporator coil and condenser coil collect dirt over their lifetime. Over time, the evaporator coil will collect dirt. This dirt reduces the airflow and insulates the coil, reducing its ability to absorb heat. To avoid this problem, check your evaporator coil every year and clean it as necessary.

Outdoor condenser coils can also become very dirty if the outdoor environment is dusty or there is foliage nearby. You can easily see the condenser coil and notice if dirt is collecting on its fins.

You should minimize dirt and debris near the condenser unit. Cleaning the area around the coil will allow for sufficient airflow around the condenser.


Every now and then, pass a stiff wire through the unit’s drain channels. Clogged drain channels can incapacitate a unit from reducing humidity.

Winter Preparation

During winter, it is advised to either cover your room air conditioner or remove and store it. Covering the outdoor unit of a central air conditioner will protect the unit from winter weather and debris that may clog it.

Hiring Professionals

When your air conditioner needs more than regular maintenance, hire a professional service technician. Well-trained technicians can find and fix problems that your air conditioning system has.

If you are looking for an air conditioning company don’t look further than BMS Aircon, we operate across the Midlands in Birmingham, Derby, Leicester, Nottingham, Coventry and Milton Keynes.