What is the icing on Aircon and why it formed?
by Lavanya Aircon Aircon Servicing SingaporeIt’s hot
outside and you are enjoying spending time with your family at your home. You
are not worried because summer heat can’t disturb you but suddenly
your Aircon stops working. When you check it, you find ice there. Sometimes
even ice
can fall from your aircon after you stop the aircon. Damn! How can this
happen? Your first reaction would be like this. You are not alone. Almost
everyone reacts the same when they see ice frozen on their home aircon.
A variety of reasons are
responsible for frozen aircon, even in summers. When ice or frost builds up on
your AC unit, the cooling process gets affected.
1. What does Icing on Aircon Indicates
The icing issue with
aircon should not be handled with negligence. Aircon icing indicates that there
is a problem with your AC component. The faults can be with your Gas, filter, evaporator
coils, fans, or motor, etc.
All these components are made to work simultaneously with each other. When they
fail to do so. Your aircon starts showing several problems. Frozen ice on
aircon coils is one of them. When Ice melt it falls on the ground through AC
window.
2. Reasons for Icing on Aircons
Ice
starts building up inside or outside the Aircon when the components are faulty.
The major reasons and responsible components are described below:
- Evaporator coil: The aircon fan
constantly blows air inside the AC unit and keeps the temperature of
cooling coils above the freezing point. Evaporator coil temperature
drops below the freezing point when it doesn’t get enough air from air
blowers. In this case, evaporator
coils begin the
moisture to condense and convert into the frost on the coils.
- Aircon filter:
Aircon filter can cause frost build up in your aircon. When the filter
became dirty and faulty they lack adequate airflow. Due to dirty filters, Insufficient
air flows over the evaporator coils and cause them to become too cold. If
this continues for the long term, your aircon result in little or no cool
air being circulated into the room as well as ice on coils.
- Insufficient Feron
level: If there is leakage in your aircon, the
gas tank becomes empty slowly. Low Feron (gas) in the aircon results in
frost formation in it. When the refrigerant(gas) in the system goes too low
due to leakage over time, there will be a decrease in the temperature of
the air conditioning system. The refrigerant liquid vapor in the
evaporator and cause ice to build on the coil.
- Debris build-up: Debris
build-up on evaporator coils can be another possible reason for ice
formation. The airflow is slowed due to the buildup of dust and debris on the
evaporator coil. Due to the lack of air conditioner coil
cleaning, it reduces the efficiency. When
this happens the coil becomes so cold, that the condensate forming on its
surface freezes completely and blocks the coil.
- Faulty thermostat: The role of the thermostat is that it decided how much time AC
should run in order to cool the entire room. In short, it regulates the
temperature within the air conditioner space. When thermostat becomes faulty,
it does not signal Aircon to stop cooling. The Aircon runs continuously to
cool the room. The ice can build up in aircon due to this faulty
thermostat that making the aircon to run more and more.
- Damaged Fan:
Another reason for aircon icing is that your evaporator unit may not be
functioning due to defective air blowing fan. If the fan is not blowing
air to the coil and room. The fan may be damaged. The fan motor may have
burnt or some loose connections may have occurred.
- Low outdoor temperature: Sometimes when the outdoor temperature gets too low, it may show
up its adverse effects on the air conditioner system in ice formation.
3. What to do when Ice Form in Aircon
- If you don’t often clean your aircon
filters. Cleaning
it can solve the frozen aircon problem. Clean the filter if it is dirty or
clogged. The air
filters are normally located behind the front grille which may be attached
by plastic tabs (Depends on aircon model).
- Before cleaning the
air filters, let the ice frozen on the outside and inside aircon coils to
thaw. Don’t try to scrape the ice with any tool like a knife or anything
sharp. It may damage the other parts of the aircon. Give sufficient time
to ice to melt naturally.
- You can also turn the
unit to Fan only mode by clicking the button on the remote. (if your
aircon have this feature) and set the speed to high. The unit should
defrost fairly quickly. Then, run the unit in Fan mode until the coils or
vents are dry or nearly dry.
- Also, ensure that no
furniture or drapes are blocking the return vents.
- Install the air
filter again in the aircon after cleaning. Start your aircon to see if the
problem solved. If not, contact an experienced aircon expert to check your
AC.
4. What Not to Do when Ice Form
in aircon
- Do not continue to use the aircon
when you see it frozen. It may result in a more severe effect on another
component of aircon. Using Aircon with ice formation can stop the airflow
completely and burn the air blower fan’s motor.
- There are numerous reasons for ice formation in your aircon. The
major reason is the leakage
of refrigerant (gas). If this is the reason, then do not try to fill
the gas on your own. Anyway if you do it, the leakage will be still there
and vapor the gas very easily. So, always hire a professional to stop this
leakage completely.
5. Conclusion
Aircons
are very complex machinery in nature and frozen Aircon’s
issue should not be taken lightly. In worst cases, you may need to replace
the entire system if ice formation happens continuously. So it’s better to hire
Aircon Servicing in Singapore to save your
costs by repairing your frozen air conditioner immediately. MCL Aircon is a
Singapore based Aircon Servicing company with qualified technicians. We
can take care of your aircon servicing needs. Please book your aircon general service, chemical
cleaning or Chemical
over haul now.
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Created on Jan 20th 2020 02:56. Viewed 359 times.