Friedrich AS - W126BMS0 Service Manual page 27

Problem
• The connection of the indoor and
outdoor units has a problem.
The air condi-
tioner stops • The thermistor recognition has a
during opera- defect.
tion.
• The electronic expansion valve
operates incompletely.
Indoor unit is
• Auto-Clean mode is being operat-
still operating
ed.
even when the
• This function is to remove the rest
power is being
of moisture indoor unit.
turned off.
Mist is dis-
charged from • The cooled air from the air condi-
the air outlet of tioner makes mist.
the indoor unit.
Water leaks • In the heating operations, con-
from the out- densed water drop from the heat
door unit. exchanger.
• Clicking sound
Clicking sound can be heard either
when the unit starts or stops due to
movement of reversing valve.
• Creaking sound
The plastic parts of the indoor unit
Operating noise
make sound of shrinks and
or vibration.
expands due to a sudden tempera-
ture change.
• The water flowing sound, Blowing
sound
The flow of refrigerant through the
air conditioner is switching, noise
can be heard.
Operating noise • The installation condition is in trou-
or vibration. ble.
• The air smells bad because a
The indoor unit musty or cigarettes odor may be
gives out odor. absorbed into the indoor unit and
discharged with airflow.
NOTICE
Temperature difference between intake and discharge air depends on room air humidity. When the room air
humidity is relatively higher, temperature difference is smaller. When the room air humidity is relatively lower tem-
perature difference is larger.
Possible causes Corrective action
• Conduct the wiring and piping error
check.
• Check that the thermistor have been
separated from the pipe holder.
• Check the temperature of the connection
pipe.
• Please, wait until the end of functions.
• It will be inhibit a fungal growth.
If you do not want this feature, you can
turn off to press.
• When the room temperature is down,
this phenomenon will disappear.
• This symptom need to install drain hose
under the base pan.
• Contact the installer.
• These are normal symptoms.
• After a moment, it will be silent.
• Adjust the position of the air conditioner
so that it can have enough space.
• If the smell does not disappear, you
need to wash filter or heat exchanger.
• Contact the installer.
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Part 4 Trouble Shooting
Error Code
05, 09, 53
09, 32, 41,
45
44, 61, 65
67
01, 02, 06,
12
41, 45, 62
10, 26, 67