Daewoo DWA-120C Service Manual page 9

Trouble
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)
Situation Analysis
1) Fan
2) Fan motor
3) Capacitor
4) Fan motor circuit
Refrigerant system
1) Refrigerant system
2) Filter
3) Heat exchanger of
condenser
1) Installation place
2) Fan
3) Fixing screws
4) Electric
components
Installation
¡
condition
1) Each wiring
Insulation of
¡
components
Cause
Blocked by others
¡
Disconnection or burned-out
¡
electric cord
Failure malfunction of contact
¡
Disconnection of malfunction of
¡
contact
1) Refrigerant system is choked
2) Compressor failure
3) Leakage of refrigerant gas
1) Refrigerant system is choked
2) Compressor failure
3) Leakage of refrigerant
4) Refrigerant charge is too high
Clogged up with dust
¡
1) Fin is clogged 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
Installation of the unit is
¡
imperfectly done
1) Fan is contacted with
obstacles
2) Fixing bolt
Have a screw loose
¡
Electrical noise
¡
Mounting chassis does not
¡
slant property to outside.
The front is lower than rear
¡
side
1) Insulation defect of wiring and
lead wire
2) Leakgae of current due to the
dew or rust
Insulation defect
¡
9
Remedy
Repair
¡
Replace the fan motor
¡
Replace
¡
Check the circuit
¡
Repair
¡
Repair
¡
Recharge refrigerant gas
¡
Check and repair refrigerant
¡
system
Replace
¡
Check part of gas Leakage and
¡
repair
Repair and recharge
¡
Clean the air filter
¡
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
Replace the defective parts
¡
Replace the defective parts
¡
Replace the defective parts
¡