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16
Troubleshooting
PROBLEM
SOLUTION
The air conditioner
does not work at
all.
• Check power status and then operate the air conditioner again.
• Plug in or switch on the circuit breaker and then operate the air
conditioner again.
• Check if you have set the Off Timer. Operate the air conditioner
again by pressing the Power button.
The temperature
adjustment is not
working.
• Check if you have selected Fan/Turbo mode. In these modes,
desired temperature is set to auto and you cannot adjust the
temperature.
Cool/Warm air
does not come
out of the air
conditioner.
• Check if the set temperature is higher(during Cool mode)/
lower(during Heat mode) than the current temperature. Press the
Temp + or - button on the remote controller to change the set
temperature.
• Check if the Air filter is blocked by dirt. If there is a lot of dust on
the Air filter, cooling(heating) performance may decrease. Clean
them frequently.
• Check if the outdoor unit is covered or installed near the obstacle.
Take the cover off and take the obstacle away.
• If you want to operate the air conditioner in the sunlight, cover
the outdoor unit using curtains or etc.
• Check if the air conditioner is operating in De-ice mode. When the
ice formed in winter or the outdoor temperature is too low, the
air conditioner operates in De-ice mode automatically. In De-ice
mode, indoor fan stops and cool air does not come out.
• If the doors or windows are open, it may cause bad cooling
(heating) performance.
Close the doors and windows.
• Check if the air conditioner has just been turned on after stopping
cooling(heating) operation. In this case, just a fan will run to
protect the outdoor unit compressor.
• Check if the pipe length is too long. When the pipe length
exceeds maximum allowable pipe length, cooling (heating)
performance may decrease.
Refer to the following chart if the air conditioner operates abnormally. This may
save time and unnecessary expenses.
Summary of Contents for Air Conditioner
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