7. TROUBLE SHOOTING GUIDE

NOTES

1. When replace the P.C.B. ASS’Y do not scratch the surface of the P.C.B. ASS’Y.

2. Disconnect the power cord from the electric outlet.

CONCERNING WATER SUPPLY

PROBLEM

 

CHECK POINT

 

CAUSE

 

SOLUTION

 

 

 

 

 

 

 

WATER IS

NOT SUPPLIED.

Do you open the water

tap?

YES

Is the filter of the water inlet valve clogged with dirt?

NO

Is the water pressure sufficient?

(0.3~8 kgf/cm2)

YES

NO

Open the water tap.

 

YES

Clean the filter.

 

NO

 

 

 

Increase the water pres-

 

 

 

 

 

sure.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE : Open the water tap fully and measure

 

 

 

the flow rate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow

11.5

15.0

18.0

20.3

24.1

27.4

 

rate(l/min.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water pressure

0.3

0.4

0.5

0.6

0.8

1.0

 

(Kgf/cm2)

 

 

 

 

 

 

 

 

 

From the upper results, you know that the flow rate more than 11.5l/min. is essential for water supply.

Does the water inlet valve make operating sound?

YES

Is the connector or the terminal connected properly?

YES

NO

NO

Water inlet valve is defective.

Improper connection of the connector or the ter- minal.

Change water inlet valve.

Connect the connector or the terminal properly.

Is the output voltage of the P.C.B normal?

YES

NO

P.C.B AS is defective.

Change the P.C.B AS.

 

Lead wire is defective.

 

 

Change the lead wires.

 

 

 

 

 

 

TROUBLE SHOOTING 23

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Daewoo DWF-176S, Auto Washer service manual Trouble Shooting Guide, Concerning Water Supply