Air conditioner maintenance - an expert interview

When should I replace my air conditioner?

The frequency of air conditioner repair or replacement depends on several factors, including the age and condition of the unit, how often it is used, and how well it is maintained. However, installation can significantly affect the lifespan and efficiency of an air conditioning system. Therefore, its crucial to have a professional install and maintain your air conditioning system to avoid major repairs and prolong the systems lifespan. Well-maintained domestic air conditioning system can last 10-15 years.

However, one can replace an air condition unit if the following occurs;

When the system stops working.

Too many repairs over time.

The air conditioner can also be replaced willingly when the owner wants an upgraded version or a different brand of AC.

Why does the air conditioner freeze up?

The freezing up of the air conditioning system might be due to improper sizing, installation, or maintenance related. This largely impacts the performance of the system and compressor working if not resolved on time.

Over-sized system

Ice buildup can occur if the air conditioner is too large for the room or space it serves. An oversized Air conditioning system often short-cycles, turning on and off frequently. This prevents the good air circulation that normally keeps moist air from condensing on the cooling coils and freezing up.

Poor airflow

The air conditioner depends on the free flow of air past the coils to properly work, and if dust, debris, or other obstacles lead to airflow restriction, the chilled refrigerant in the coils cant properly absorb heat from the room or space and instead may absorb it from moisture on the coils, causing it to freeze up.

Blocked drain system

If the drain system gets clogged, excess moisture can gather on the coils condenser, and freeze up as the heat is extracted. Which will cause the system to freeze up.

Thermostat and fan settings are incorrect

In some instances, setting the fan speed too low while the thermostat is set to a low temperature will prevent the air conditioner from properly transferring its heat from indoors to outdoors. This is sometimes done in error or to minimize the noise of the appliance, Ice will build up on the evaporator and the piping system if the fan speed and thermostat are set too low.

Poor Refrigerant Pipe Installation

This can cause low refrigerant Level Is the system due to pipe restriction or slow leaks, Reduce the level of refrigerant in the system will cause it to freeze up and system performance. Because there is less refrigerant in the system, it must expand considerably more as it transitions from liquid to gas, and more expansion translates into a lower temperature that can very quickly freeze any moisture.

Why is my air conditioner leaking condensation? Should I be worried?

There are many reasons your air conditioning system may be leaking water in your home.

Block drainage system

When the condensation formed in the evaporator is not able to drain out properly over time the pipe insulations will soak and start dripping water in the room or space.

Improper insulation of the piping system

If the pipe is not properly insulated condensation will form within the areas not properly insulated causing water droplets in the room or space, however, this should not be a major issue if maintenance is done regularly and issues resolve.

Why does the air conditioner become noisy sometimes?

Noise from the air conditioning system might be from indoors or outdoors: Below are some other reasons why you may hear noise from your unit.

Fan motor bearing-related issue.

Misaligned belt drive.

Mechanical issues with the compressor.

Loose parts.

Damaged fan blower.

Can anyone change the air filter of their air conditioner themselves and is it advisable?

It is true that some people are handy and can fix some broken devices at home, but it is also important to know that fixing an AC filter can be simple and still complicated. So, to avoid causing further damage to your AC, it is best to call a professional to change your AC filter.

What should I do before turning on my air conditioner?

It is only necessary to take precautions before turning on your AC if you have not used it in a while. If you happen to be using your AC after some time, it is best to check its components to make sure they are all in good condition.

Can using an air conditioner be termed as ‘too much’?

Not necessarily but it is important to turn off the air conditioner when it is not needed, so it can get its resting time and to save electricity.

Conclusion

Now that you are aware of and well informed of how air-conditioners should be used and maintained. Go ahead and make that purchase today, and get it installed by the best of engineers and enjoy your air-conditioner for as long as you want.

About the author:

We spoke with Engr. Chris Nwabueze from Colmec Engineering Limited, who has extensive experience in the field of air conditioner maintenance, repairs and electrical services.