LM Wall Mount User Manual

Phenomenon Solution
Checked items before
maintenance
Eliminate the odour
source. Clean the
filter.
Unit is operating un-
der auto mode?
Voltage is too low?
Wait until the voltage
resumes normal.
Remove obstacles.
Your required temp-
erature exceeds the
set temperature
range?
Filter is dirty? Clean the filter.
Adjust temperature to
proper range.
Is sensitivity of rem-
ote controller low;
fuzzy display or no
display?
Disconnect power,
put back power, and
then turn on the unit
again.
No display when op-
erating remote cont-
roller?
Check whether rem-
ote controller appears
to be damaged. If yes,
replace it.
Whether remote co-
ntroller is within the
signal receiving range?
Eliminate obstacles.
Take the remote con-
troller close to indoor
unit. Turn off the fluo-
rescent lamp and then
try it again.
Whether remote co-
ntroller is pointing at
the receiving window?
Under heating mode,
indoor temperature is
reached to set temp-
erature?
Temperature can’t
be adjusted under
auto mode. Please
switch the operation
mode if you need to
adjust temperature.
Check the batteries.
i
If
s
t
t
h
o
e
o
p
lo
o
w
w
,
b for e
please rep-
atteries
lace them.
Power cord is overheating or damaged.
There’s abnormal sound during operation.
Air switch trips off frequently.
Air conditioner gives off burning smell.
Indoor unit is leaking.
Select proper angle
and point the remote
controller at the rece-
iving window on indoor
unit.
Power failure?
Wiring has malfunc-
tion?
Unit has restarted
immediately after
stopping operation?
Wait for 3min, and
then turn on the unit
again.
Is plug loose?
Whether there’s inte-
rference, such as
thunder, wireless
devices, etc.
Reset the function.
Check items
Whether the function
setting for remote
controller is correct?
Indoor temperature
and humidity is high?
The noise is the sound
of refrigerant flowing
inside the unit, which is
a normal phenomenon.
Check items
Solution
This is the sound of
friction caused by
expansion and
or
contraction of panel
or other parts due to
the change
of temp-
erature.
Whether there’s od-
our source, such as
furniture and cigare-
tte, etc.
In order to prevent
blowing out cold air,
indoor unit will be
started after delaying
for several minutes,
which is a normal
phenomenon.
Heating mode is
turned on just now?
Reinsert the plug.
Phenomenon
Odours are
emitted
Air switch trips off
or fuse is burnt out?
Set tempe-
Ask professional to
replace air switch or fuse.
Set temperature
Signal receiving
range is 8m.
Whether there are
obstacles?
range: 16°C~30°C
(61°F~86°F).
Ask professional to
replace it.
rature can’t
Pull out the plug.
Reinsert the plug after
about 3min, and then
turn on the unit again.
no action.
be adjusted
Indoor unit
can’t receive
remote co-
Set temperature is
in proper range?
Do not repair or refit the air conditioner by yourself.
If the air conditioner operates under abnormal
conditions, it may cause malfunction, electric
shock or fire hazard.
ntroller’s si-
Door and window
are open?
gnal or remote
Because indoor air
is cooled rapidly.
After a while, indoor
temperature and hu-
midity will be decrease
and mist will disappear.
controller has
Cooling
(heating)
effect is
Whether it's interfered
severely (such as sta-
tic electricity, stable
voltage?)
Fluorescent lamp in
room?
not good.
window.
Close door and
Air conditi-
Air conditioner is
abnormally
turned on or turned
oner operates
off just now?
Air inlet or air outlet
of indoor unit is
blocked?
“Water
noise
flowing”
Air conditioner is
turned on or turned
No air
off just now?
emitted
unit
from indoor
After reaching to set
Cracking
noise
Air
12
Wait until power
recovery.
conditioner
can’t operate
Mist is emi-
tted from
indoor unit’s
air outlet
General phenomenon analysis
Please chec k below ite ms before a sking for
maintenance. If the malfunction still can’t be
eliminated, please contact local dealer or qualified
professionals.
temperature,
indoor
unit will stop blowing
out air.
WARNING
When below phenomenon occurs,please turn
off air conditioner and disconnect power immedi-
ately, and then contact the dealer or qualified
professionals for service.