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18 Portable Air Conditioner Owner’s Manual
TROUBLESHOOTING
Before seeking repair or service, please check the following.
Trouble Check Action
Air Conditioner does not
operate at all
Is there power?
Is the unit plugged in?
Did the fuse or circuit breaker
break off?
Is SET TIME suitable?
It is normal.
Push the plug into the wall
socket
Change the fuse.
Change SET TIME
Cooling efficiency is not good Is air inlet or outlet blocked?
Is there any other heat source
in room?
Are air filters very dirty?
Is SET TEMP suitable?
Is indoor fan speed set at low?
Clear the blockage
Move the heat source
Clean the air filter
Set temperature suitable
Set suitable fan speed.
Too noise and vibration It is the inner liquid
(refrigerant) flowing inside.
Is unit leveled?
it is normal
Place it in a horizontal floor
The machine start and stop
frequently
Is the voltage of the power
source normal?
Is the air exhaust fixed
correctly?
Are you adding air exhaust
yourself?
Make sure the power source is
rated at 110-115V/60Hz
Try to keep the air exhaust
horizontal
Don’t add air exhaust yourself
and remove it
Call for service when:
The fuse and switch often break.
The power cord superheats or the sleeve of the cord broken.
You detect something abnormal.
Self diagnosis function
Our company provides the end-users with thoughtful services by installing various diagnostic
systems to indicate the following irregular performances.
Check code Diagnosis of malfunction
FAULT E8 Overheating protection
FAULT E3 Faulty coils
FAULT E2 Room temperature faults
FAULT E4 Units faults
FAULT E5
Condensed water in water tank is
over limited level.