Singer SNG21-09IVi, User Manual, Page: 83 / 112

83
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Phenomenon Check for Solution
Air conditioner cannot
operate.
Power failure? Wait until power recovery.
Is plug loose? Reinsert the plug.
Air switch trips off or fuse
is burnt out? Ask professional to re-
place air switch or fuse.
Wiring has malfunction?
Ask professional to re-
place it.
Unit has restarted immedi-
ately after stopping opera-
tion?
Wait for 3 minutes, and
then turn on the unit again.
Whether the function set-
ting for remote controller is
correct?
Reset the function.
Mist is emitted from
indoor unit’s air outlet. Indoor temperature and
humidity is high?
Because indoor air is
cooled rapidly. After a
while, indoor temperature
and humidity will be de-
crease and mist will disap-
pear.
Set temperature
cannot be adjusted.
Unit is operating under
auto mode?
Temperature can’t be ad-
justed under auto mode.
Please switch the opera-
tion mode if you need to
adjust temperature.
Your required temperature
exceeds the set tempera-
ture range?
Set temperature range:
16ºC ~ 30 ºC.
Cooling/Heating
effect is not good.
Voltage is too low?
Wait until the voltage re-
sumes normal.
Filter is dirty? Clean the fi lter.
Set temperature is in prop-
er range? Adjust temperature to
proper range.
Door and window are
open?
Close door and window.
Odours are emitted.
Whether there is odour
source, such as furniture
and cigarette, etc • Eliminate the odour
source.
• Clean the fi lter.