Daewoo KUD-UD121WCW Service Manual download pdf (Page 34)

2) TROUBLE SHOOTING

TROUBLE SITUATION CAUSE CHECK POINT SOLUTION

PCB

ERROR MODE

WATER IS

SUPPLIED

WATER

SUPPLY

IS NOT

STOPPED

Etc

NO WATER

SUPPLY WITH

"WING" 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"

"E2"

check the water tap opened

check the resistance 880~1080Ω

check the filter

check the connector

check the resistance 880~1080Ω

check the connector

check the pressure switch

check the hose torn or twisted

check the leakage of inlet valve

check the water tap opened

check the resistance 880~1080Ω

check the filter

check the connector

check the resistance 880~1080Ω

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

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Daewoo KUD-UD121WCW Service Manual Page 34

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