Daewoo DWD-UD123X, Service Manual

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48
2. VALVE INLET
Rre-washing Water
Input Valve
Washing Water Input
Valve
Hot Water Input Valve
M4
×
4
: CABINET 4
Bleach Input
Valve
Classification
Code
Color
Coil Resistance
Use
Appearance
Structure
3-hole Valve and Hot Water Valve
3-hole: 3615415070, 3615415050, Hot Water: 3615415700, 3615414800
Gray
4320 ~ 5280
Ω
Supplying water for washing/ pre-washing and bleach
Water not
supplied
Water supply not
carried, only noise
is heard
Water supply not
carried out without
noise
Water tap not opened
Coil short
Excessive foreign
substances in SUS filter
Foreign substances in
valve
Connector loosened
Coil short
Wiring short
Defect in water level
sensor
Defect in pressure hose
Defect in water supply
valve
Defect in water supply
valve assembly, etc.
Check for tap opening.
Check if resistance between water supply valve terminals is
within 4320~5280
Ω
.
Remove water supply hose and check for foreign substances in
filter.
-
Visually check connector connection status.
Check if resistance between water supply valve terminals is
within 4320~5280
Ω
.
Wiring short -> Conduction test
Refer to water level sensor defect check method.
Check for blocking of holes in pressure hose.
-
Floater restraint, loosening -> S/W not working
Check for leakage through the sides of water supply valve.
Continuous water
supply in power
'on' state
Continuous water
supply in power 'off'
state
Water leakage
through sides Others
Water is
continuously
supplied
(inside tub)
PCB Error
Mode
"IE"
"IE"
"IE"
"IE"
"IE"
"IE"
"IE"
"E2"
"E2"
-
-
Symptoms of
Breakdown
Detailed
Symptoms
Cause Diagnosis of Defect
Open water tap.
Clean out foreign substances
from inside the filter.
Replace water supply
valve.
Administer re-insertion.
Replace water supply
valve.
Replace water level
sensor.
Replace defect parts.
Replace water supply
valve.
Replace water supply
valve.
Solution