An air conditioner is a crucial item in your office,
home, and even in other places like hospitals:
- Since Singapore is a tropical country, temperatures tend
to be quite high.
- Just like every item that you use, maintenance cannot be
- If you want anything to serve you well, and for long, you
must maintain it, and an air conditioner is no exception,
despite the fact that it is designed to withstand different weather
- One of the important aspects of aircon maintenance is
- It is also called a chemical overhaul.
- An aircon loses 5% of its efficiency yearly.
- How often should you do a chemical cleaning for your
- When buying an air con, the seller usually recommends how
often you should clean it.
- However, is it enough?
- Is it efficient?
- This is what we want to explore.
Once a year is alright for modern air con's, however, in
Singapore, you tend to use your unit the entire year due to
- If you live near the sea, the unit will suck grit and
- To be on the safe side, it is advisable to clean your
aircon using chemicals depending on factors like frequency
- Before we discuss further on how often you should do a
chemical cleaning, what is it in the first place?
Chemical cleaning is taking out each part of the aircon,
checking whether it may have any problems, and then cleaning
it using a chemical:
- How often you clean should depend on its usage.
- Frequently chemical cleaning your aircon ensures that 95%
of its efficiency is maintained yearly.
- Some experts recommend cleaning at least once in 6 months.
Maybe once a month is ideal.
However, chemical clean the unit if:
1. It cannot produce cold air.
An accumulation of ice in the air con's condenser could
cause the air con to produce cold air.
An air con has two sections:
A fan coil and a condenser. If
they are dirty, your air con will produce cold air.
Therefore doing a chemical wash will ensure proper
2. The aircon is leaking
This happens when there is a back-flow as the drainage pipe
is clogged up. Again, a chemical wash will stop the
3. There is a bad smell coming from the aircon
When bacteria accumulate in the fan coil, there is an odor
that comes from the air con. If the unit is in this state, a
chemical cleaning must be done.
Let us now look at the basic process of chemical cleaning
for your aircon:
- First, the fan coil will be removed from the wall.
- It is then cleaned using the chemical, and clean water
used to rinse it
- This prevents corrosion of the coil caused by the chemical
- The fan blades and blower wheel are also cleaned using the
- The fan bearings are greased
- Next, chemical cleaning of the internal air-filter
- The drainage pipes are chemical flushed
- The pressure is checked to ensure proper functioning
Why should we chemical clean our air con's?
- It becomes less noisy
- It stops leaking water
- Less energy consumption, as it works "less hard" to cool
the room. This translates to less cost in terms of your
- The bad smell is eliminated
- During chemical cleaning, the thermostats and controls are
- It prevents more serious breakdowns of the aircon, thus
less expensive repair and maintenance, or even replacing
-Overall, the efficiency is improved
Chemical cleaning is usually recommended for air con parts
that haven't been cleaned for a long time, or those which
normal maintenance doesn't help:
- It is no wonder then that people differ on how often to do
chemical cleaning, despite being experts in the field.
- Factors like frequency of usage, location, and when the
unit has issues like leakage, lack of release of cold air,
bad smell are really the determinants of the frequency of chemical
- A person who lives near the sea may need to do chemical
cleaning, every month, while another living further would do
with a once in 6, 9 or 10 months clean up.
- It would therefore be safe to conclude that there is no
really a fixed or standard time after which to chemical
- It solely depends on your unique circumstances.
- You want it to work efficiently, then go the chemical way.