Troubleshooting; Items To Be Checked First - Samsung AR12FSFPESNNEU Service Manual

10.
10-1
Refer to the following chart if the air conditioner operates abnormally. This may save
time and unnecessary expenses.
PROBLEM
The air
conditioner does
not work at all.
The temperature
adjustment is not
working.
Cool/Warm air
does not come
out of the air
conditioner.
SOLUTION
power
Check 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
conditioner again by pressing the Power button.
Check if you have selected Fan/Turbo mode. In these
modes, desired temperature is set to auto and you cannot
adjust the temperature.
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
dust on the Air
decrease. Clean them frequently.
Check if the outdoor unit is covered or installed near the
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.
Timer. Operate the air
is blocked by dirt. If there is a lot of
cooling(heating) performance may