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TROUBLE SHOOTING
4
92
Phenomenon
Troubleshooting
Solution
Air conditioner can’t
operate
Power failure?
Wait after power recovery.
Is plug loose?
Reinsert the plug.
Whether the air switch is tripped off or
fuse is burnt?
Ask professional person to replace air
switch or fuse.
Is there’s malfunction for the circuit?
Ask professional person to replace circuit.
Whether the unit is restarted up after
stopping immediately?
Wait for 3min, and then turn on the unit
again.
Poor cooling (heating)
Is the power too low?
Wait after voltage is resumed.
Whether the air filter is too dirty?
Clean the air filter.
Whether the set temperature is proper?
Adjust the temperature.
Whether door and window are closed?
Close door and window.
Air conditioner can’t
receive signal from
remote controller or
remote controller is
not sensible.
Whether the unit is interfered seriously
(such as static pressure, unstable voltage)?
Please pull out the plug. Insert the plug
after about 3min, and then turn on the
unit.
Whether remote controller is within the
receiving range?
The receiving range of remote controller is
8m. Do not exceed this range.
Whether it’s blocked by obstacles?
Remove the obstacles.
Is sensitivity of remote controller low?
Check the batteries of remote controller.
If the power is low, please replace the bat-
teries.
Whether there’s fluorescence lamp in the
room?
Move the remote controller close to air
conditioner.
Turn off the fluorescence lamp and try it
again.
No fan blowed out
from air conditioner
Whether air outlet or air inlet is blocked?
Eliminate the obstacles.
Under heating mode, whether indoor tem-
perature ireaches set temperature?
Indoor unit will stop blowing fan after
reaching set temperature.
Whether heating mode is started up just
now?
In order to prevent cold air, air conditio-
ner will delay for a while to be started up,
which is the normal phenomenon.
Whether evaporator is defrosted? (observe
it by pulling out the filter)
It’s the normal phenomenon. Air conditio-
ner is defrosting. After defrosting is fini-
shed, it will resume operation.
Set temperature can’t
be adjusted.
Whether the unit operates under
auto mode?
Temperature can’t be adjusted under auto
mode.
Whether the required temperature
exceeds the temperature setting range?
Temperature setting range: 16°C-30°C.
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