Troubleshooting; Special Precautions - Samsung AW0700B Service Manual

5. Troubleshooting

5-1 Special Precautions

5-1-1 Check the voltage of the of power source.
The input voltage shall be,
Model Type
AW1400A
AW1800A
AW2410C
T
T
The air conditioner may not operate properly if the voltage is out of this range.
5-1-2 Check weak and fragile parts.
5-1-3 Check the connection of terminals.
5-1-4 When a malfunction occurs:
No Trouble
!
Compressor does not
run.
@
Motor does not run.
#
Low cooling capacity
$
Noise
Samsung Electronics
Voltage
115V~, 60Hz
A
B 220V~, 60Hz
C
208-230V, 60Hz
D
200-220V, 50Hz
D
E
220-240V, 50Hz
E
Checkpoints
1. Check the thermostat position.
2. Check the connection of the lead wire.
3. Check the over load protector.
4. Check the compressor.
5. Check the position of the select switch.
1. Check the connection of the lead
wire & switch.
2. Check the motor
3. Check whether the unit is deicing.
1. Check the refrigerant leakage.
2. Check the evaporator condition.
(freezing, blocked with dusts, etc.)
Difference of temp. exists between
the suction side and the discharge
side at least 12˚C.
Standard condition
Indoor : 27˚C outdoor : 35˚C
1. Check vibration of the pipe.
2. Check the propeller fan and blower
(not loose or broken).
3. Check bearing noise of the motor.
4. Check the compressor noise against.
Possible cause
1. Setting temp is lower than room temp.
2. Disconnection of the lead wire.
3. O.L.P is faulty
4. Compressor is faulty
1. disconnection of the lead wire
2. switch is faulty.
3. motor is faulty.
4. The unit is operating on the deice mode.
1. Caused by the pipe crack.
2. shortage of refrigerant.
3. clean the evaporator & air filter.
1. pipes are contact with the other parts.
2. the hex. nut is loose
3. the parts are broken
4. motor is faulty
5. compressor is faulty that of other
compressors.
5-1