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Identification:
Technical
Bulletin no:
Date:
Issuer:
Factory:
Subject
D02-D03-D04-D05
CGX2007-10 (page 1 of 1), 1st ed.
27 April 2007
R. Sartor (DWS Customer Support)
DW Vallenoncello - Italy
Main Boards in UC, FL, HT and PW
Model
Reason
Action in
Factory
Lead-free (complying with RoHS) Lead-free (complying with RoHS)
Until s/nr.
70900099
0L1236
0L1238
0L1239
single-phase with pressure
atmospheric boiler and
LS5 / WT4 three-phase with
pressure boiler and without
Action in
Field
Whole Undercounter range (LS5-6E / WT4-30E), whole Utensils Washer
range (LU7 / WTU40), whole Hood Type range (LS9-14EA / WT55-65E) and
whole Pot Washer range (PW1M-2M / WT830M-850M / WT830EA-850EA).
Firmware and hardware standardization.
Since serial number 71000001 we have introduced new main boards as
follow (not all product families at the same time):
Default
LS5 / WT4
boiler
LU7 / WTU40 with
without water softener
built-in
water softener built-in.
Product family
LS5 / WT4 single-
phase with
pressure boiler
& LS14ROW /
WT65ROW
LS6E / WT30E
with water softener
built-in
LS14EA / WT65E
with water softener
built-in
LU7 / WTU40
All remaining
machines
From
s/nr. 71000001
0L1410
(673610300)
0L1411
(673609300)
0L1412
(673610500)
Default Remarks
LS5 / WT4 single-
phase with pressure
boiler
LS6E / WT30E with
atmospheric boiler
and water softener
built-in
LS5 / WT4 three-
phase with pressure
boiler and without
water softener built-
in
The main board for machine with
water softener built-in is not longer
suitable for LU7/WTU40 because of
different way of working of boiler
water level sensors (to avoid that
boiler heater works without water)
More powerful triac to drive
LS9/WT55 wash pump without
“New” main boards are perfectly interchangeable towards “old” ones while the
“old” 0L1239 is NOT longer suitable for LS9 / WT55 with single-phase wash
pump (without contactor).
Elder main boards 0L0705, 0L0706 and 0L0731 (not lead-free) can be still used until s/nr.
70900099 in countries where the Directive 2002/95/E C (RoHS) is NOT force.
none
contactor
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