If problems can not be corrected after doing below items, please
stop the air conditioner, contact our air conditioner specially eng-
aged service centre nearest to you to get help.
Is there a fault ?
Fault analysis
Air conditioner does
not operate at all.
Does power fail ?
Is plug out ?
Does power fuse or switch off ?
Is voltage higher than 253 V or lower than
207V?
Is time set suitable?
Remote controller is not
available and does not
display.
It is not running
after I/O button
is pressed.
Cooling and heating
efficiency is not good.
Air will not immediately
blow out at the start
of HEAT mode.
It is processing information, air will only blow
out when sufficiently warm. Please wait.
This is a way to protect compressor as per
microprocessor instructions. Please wait 3
minutes.
Does temperature set suitably ?
Are filters dirty?
Are inlets and outlets of outdoor unit blocked?
Does sleep function start during daytime?
Does indoor fan speed set low ?
Are doors and windows closed ?
If disturbed abnormally or operation modes
changed too frequently, sometimes the rem-
ote controller would lose function. Please
plug out and plug in again, it may be ok.
If remote controller displays unclear or disp-
lays all symbols, please change batteries.
FAULT CONFIRMATION AND ANALYSIS