LG D1607 Series Reference manual

Service Bulletin
Symptom Details
Issue: Poor washing.
Reason: Poor washing was caused by removing the guide rib in the filter assembly.
Improvement:
-Only if there is no guide rib in the filter assembly,
Change to a filter assy (good part) with a
guide rib.
You don’t need to change filter assembly,
if there is a guide rib in the filter.
Parts Chart:
*Interchangeability Code
Alphabetic Code Numeral Code
A
B
C
D
Interchangeable : Old and new parts can be used in products as per the
bulletin regardless of manufacturing date.
Old parts can be substituted for new : Old parts can be used
in products regardless of manufacture date. New parts can be used in new
products only.
New parts can be substituted for old parts : Only new parts
can be used in products regardless of manufacture date.
Not interchangeable : New parts can be used in new products only.
1 To improve performance
2 To improve productivity
3 To improve reliability
4 Change of material or
dimension
5 Addition
6 Deletion
7 Correction
Research Engineer
Dishwasher Gr.
Washing Machine Lab
LG Electronics DAC
J.H. Lee
Buyer Model : LDS4821WW/BB/ST, LDF6920WW/BB/ST, LDF7920WW/BB/ST
LDF7932WW/BB/ST, LDF9932ST, LSDF795ST
LGE Model : D1607xx, D1608xx, LD-6106xx, D1613xx, D1412TB, D1616TB
Buyer Name : EUS / ECI Effective Date : 16. Apr, 2010
Applicable Serial No. : 003KWxx00001 ~ 004KWxx ( Some Products produced in Mar & April, 2010 )
SUBJECT : Poor washing performance caused by the defect filter Asm
Date of issue: 20. May, 2010
LG Electronics Inc.
Soils
Part number Before (003KWxx~004KWxx) After (004KWxx~) Loc. No
ADQ32598202
(Same parts, divided by
Parts supplier contract )
ADQ32598202
Wrong Part was discarded for SVC part.
ADQ32598202 M110
Compatibility
- Only new part(Good part) can be used. Discard the defective filter asm.
Guide rib Filter assembly
Wrong Part Without guide rib
-When you do SVC , you must adjust twisted
check valve with your finger to correct it in
sump assembly. If not, poor washing will
continue.
Sump Twisted check valve Correct check valve
Check valve
1) Change to a filter assembly with a guide rib
2) Must adjust twisted check valve with finger to correct it.
If not, poor washing will continue.
Good Part With guide rib

Appendix A. Caution in service
No (Picture) Detail (Caution)
1
Remove filter from
sump.
Fix O-ring correctly
( To prevent twisting
in the O-ring
During assembly, put
soapy water
on the O-ring )
Must check
fixing Status of
check valve with
finger
2
Assemble a filter
assembly
to Sump by fasten 9
screws
in order
Fastening screws
must be done in
order.
If not, parts may
be broken
Be careful
to fix O-ring
correctly
1
1
2
2
33
4
4
5
Must check
the clip fixing
Must check your service part is correct ( It must have guide Riblike below )