Daewoo DWD-E1200R S, Svc Manual

Page: 36 / 64

32
6. TROUBLE SHOOTING
1) VALVE INLET
TROUBLE SITUATION CAUSE CHECK POINT SOLUTION
PCB
ERROR MODE
WATER IS
SUPPLIED
WATER
SUPPLY
IS NOT
STOPPED
Etc
NO WATER
SUPPLY WITH
"BUZZ" SOUND
NO WATER
SUPPLY
WITH SILENCE
THE WATER
SUPPLY START
WHEN POWER
"ON"
THE WATER
SUPPLY START
WHEN POWER
"OFF"
water leakage to the
side
closed water tap
coil short
alien materal jammed
alien material inside
inlet valve
unfixing connector
coil short
harness short
pressure s/w broken
pressure hose broken
inlet valve broken
inlet valve poorly
assembled
Open the water tap
Clean the filter
Change the Inlet-
Valve
The contact of the
Connector
Change the Inlet-
Valve
Change the Sensor
Pressure
Change the bad
parts
Change the Inlet-
Valve
Change the Inlet-
Valve
"IE"
"IE"
"IE"
"IE"
"IE"
"IE"
"IE"
"E2"
"E2"
-
-
check the water tap opened
check the resistance 4320~5280
Ω
check the filter
–
check the connector
check the resistance 4320~5280
Ω
check the connector
check the pressure switch
check the hose torn or twisted
–
check the leakage of inlet valve
Checking method of coil resistance, harness, connector.
MAIN PCB
WASH VALVE(GREEN) :
COMMON(BLUE)/RESISTANCE TEST
PRE-WASH VALVE(RED) :
COMMON(BLUE)/RESISTANCE TEST
DRY VALVE(YELLOW) :
COMMON(BLUE)/RESISTANCE TEST
COMMON(BLUE)
"8P" WHITE
CONNECTOR
* "IE" ERROR : lack of water supply