Daewoo DWC-070C Service Manual page 9

TROUBLE SITUATION
The compressor runs
but the motor doesn't
run
Both fan motor and Not cooling at all
compressor are
running but cooling is
bad
Insufficient cooling
Vibration & Noise
Water leakage into
room
Electric shock
(Leakage of current)
ANALYSIS
1) Fan Blocked by others
¡
2) Fan motor
3) Capacitor Disconnection or burned-out
¡
4) Fan motor circuit electric cord
Failure malfunction of contact
¡
Disconnection of malfunction of
¡
contact
Refrigerant system 1) Refrigerant system is choked
2) Compressor failure
3) Leakage of refrigerant gas
1) Refrigerant system is choked
1) Refrigerant system
2) Filter 2) Compressor failure
3) Heat exchanger of 3) Leakage of refrigerant gas
condenser
4) Refrigerant charge is too high
Clogged up with dust
¡
1) Fin is cogged up with dust
2) The ventilation is not good
3) The unit is exposed to the
sunlight
4) Other heat source is added in
the room
1) Installation place Installation of the unit is
¡
imperfectly done
2) Fan 1) Fan is contacted with
obstacles
3) Fixing screws
2) Fixing bolt
4) Electric
components Have a screw loose
¡
Electrical noise
¡
Installation condition The front is lower than rear
¡ ¡
side
Insulation of 1)Insulation defect of wiring and
¡
components lead wire
2) Leakgae of current due to the
dew or rust
9
CAUSE
Repair
¡
Replace the fan motor
¡
Replace
¡
Check the circuit
¡
Repair
¡
Repair
¡
Recharge refrigerant gas
¡
Check and repair refrigerant
¡
system
Replace
¡
Check a part of Leakage and
¡
repair
Repair and recharge
¡
Clean the air fiter
¡
Clean the unit
¡
Shade the unit from the
¡
sunlight
Remove the added heat
¡
source
Install the unit perfectly
¡
Remove obstacles
¡
Tighten the bolt
¡
Tighten the screw
¡
Exchange the components
¡
Make rear side of the unit
¡
lower than the front
Check the unit's Leakage of
¡
current.
Replace the defective parts or
¡
components
REMEDY