7
6.2 Troubles and causes of remote controller
Before asking for serving or repairing , check the following
points.
(see in Table 6-2)
Symptoms
Causes
The fan speed can not be
changed.
Check whether the MODE
indicated on the display is
"AUTO"
Check whether the MODE
indicated on the display is
"DRY"
When the automatic mode is
selected, the air conditioner will
automatically change the fan
speed.
When dry operation is selected,
the air conditioner automatically
change the fan speed. The fan
speed can be selected during
"COOL" , "FAN ONLY",
and "HEAT"
The remote controller signal is
not transmitted even when
the ON/OFF button is pushed.
Check whether the batteries
in the remote controller are
exhausted.
The power supply is off.
No receiving tone sounds
from the indoor unit even
when the ON/OFF button is
pressed.
Check whether the signal
transmitter of the remote
controller is properly directed
to the infrared signal receiver
of the indoor unit when the
ON/OFF button is pressed.
Directly transmit the signal transmitter of
the remote controller to the
infrared signal receiver of the
indoor unit, and then repeatly
push the ON/OFF button twice.
The indication on the display
disappears after a lapse of
time.
Check whether the timer
operation has come to an
end when the TIMER OFF
is indicated on the display.
The air conditioner operation will
stop up to the set time
The TIMER ON indicator
goes off after a lapse of
certain time.
Check whether the timer
operation is started when
the
TIMER ON
is indicated
on the display.
Up to the set time, the
air conditioner will automatically
start and the appropriate
indicator will go off.
The TEMP. indicator does
not come on.
Check whether the MODE
indicated on the display is
FAN ONLY
The temperature cannot be set during
FAN mode.
Table 6-2
Solution
Do not check or repair the unit on your own. Please get relevant
professionals to conduct any check or repairs.
Do not use substances like gasoline, diluent, and chemical dust
cloth to wipe the operations panel of the controller. This may
remove the surface layer of the controller. If the unit is dirty,
immerse a cloth in diluted and neutral detergent, squeeze it dry,
and then use it to clean the panel. Finally, wipe it with a dry cloth.
When the fuse melts, do not use any unspecified fuse or other
wire to replace the original fuse. The use of electrical wires or
copper wires may cause the unit to malfunction or cause a fire.
Note
Warning
7 MAINTENANCE AND REPAIR
Do not insert fingers, sticks, or other items into the air inlet or
outlet. Do not remove the fan mesh cover. When the fan rotates at
a high speed, it may cause bodily injury.
It is very dangerous to check the unit when the fan is rotating.
Make sure you turn off the main switch before any maintenance
work begins.
Do check the supporting and base structure of the unit for any
damages after a long period of use. The unit may drop and cause
personal injury if there is any damage.
Please release pressure before disassembly.
Warning
