Daewoo DWB-180C-R Service Manual page 10

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 1) Refrigerant system is choked
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