20
Malfunction analysis
Phenomenon
Check items
Solution
Air conditioner
can’t 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 replace air
switch or fuse.
• Wiring has malfunction?
• Ask professional to replace it.
• Unit has restarted immediately
after stopping operation?
• Wait for 3min, and then turn on
the unit again.
• Whether the function setting
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
decrease and mist will disappear.
Set tempera-
ture can’t be
adjusted
• Unit is operating under auto
mode?
• Temperature can’t be adjusted
under auto mode. Please switch
the operation mode if you need
to adjust temperature.
• Your required temperature
exceeds the set temperature
range?
• Set temperature range:
61°F~86°F.
Cooling (heating)
effect is not good.
• Voltage is too low?
• Wait until the voltage resumes
normal.
• Filter is dirty?
• Clean the filter.
• Set temperature is in proper
range?
• Adjust temperature to proper
range.
• Door and window are open?
• Close door and window.