Daewoo DWF-5510 Service Manual page 17

8 . TROUBLE SH OOTIN G 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.
C o n c e r n i n g Wa t e r S u p p l y
PROBLEM
Do you open the water
Is the filter of the water
inlet valve clogged with
Is the water pressure
sufficient?
(0.3~8 kgf/cm
WATER IS
NOT SUP-
PLIED.
Does the water inlet
valve make operating
sound?
Is the connector or the
terminal connected
properly?
Is the output voltage of
the P.C.B normal?
20 TROUBLE SHOOTING
CHECK POINT
tap?
YES
dirt?
NO
)
2
NOTE : Open the water tap fully and measure
YES
From the upper results, you know that the flow rate more than
11.5
NO
YES
NO
YES
NO
YES
CAUSE
NO
YES
NO
the flow rate.
Flow
11.5
rate( /min.)
l
Water pressure
0.3
(Kgf/cm )
2
/min. is essential for water supply.
l
Water inlet valve
is defective.
Improper connection of
the connector or the ter-
minal.
P.C.B AS is defective.
Lead wire is defective.
SOLUTION
Open the water tap.
Clean the filter.
Increase the water pres-
sure.
15.0 18.0 20.3 24.1
0.4 0.5 0.6 0.8
Change water inlet valve.
Connect the connector or
the terminal properly.
Change the P.C.B AS.
Change the lead wires.
27.4
1.0