21
21. Control unit
4
Service
Manual
2
5925
Front control unit
X30
X38
X39
X37
X28
X31
X27 X33 X34
X21
X20
X24
X26
X11
X12
X13
X14
X92
X97
X91
X90
X93
X95
X96
X94
X99
X98
X161
X160
X36
X111
X112
X113
X114
A31
Door lock
controller
S5
Rotary switch program selector
B1
Thermostat
A1
Programme
unit
B2
Level
switch
B4
Level switch wash program
Function
Front control unit
Programme unit A1
The programme unit is electromechanical and
has up to 10 fixed programmes (depending on
program).
The programme unit is described in detail in
section 23. Programme unit.
Level guard B2
Control of the water level and turning of the drum
are controlled with a backup guard, to ensure
that the door will not open with water in the drum
or when the drum rotates.
Apart from a level guard on the programme unit
card, there is a level guard B2, connected to the
door lock control A31. This card controls door
locking action as well as the level and drum rpm
speed.
Level guard B4
Controls the water level for low and high level in
wash programs.
Thermostat B1
Controls the wash temperature and closes the
heating relay or steam valve when selected
temperature is reached.
Rotary switch S5
Rotary switch for selecting wash program.
Fig.
2
Fig.
2
Fig.
2
Fig.
2
Summary of Contents for W620 Classic
Page 1: ...DOC NO 438 9205 85 07 EDITION 49 2004 W620 W630 W640 W655 W675 Classic SERVICE MANUAL ...
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Page 13: ...1 1 1 Safety precautions Service Manual Contents Safety precautions 3 ...
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Page 17: ...2 Technical data Contents Technical data 3 Connections 3 ...
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Page 37: ...11 Regular maintenance Contents Daily 3 Every third month 3 ...
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Page 61: ...27 Thermostat Contents Data 3 Description 3 Repair instructions 4 Replacing the thermostat 4 ...
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Page 79: ...3 30 30 Motor Service Manual Warnings DANGER Be careful when measuring capacitors and filter ...
Page 85: ...38 Drain valve Contents Description 3 Function 3 Repairs 4 Disassembly 4 Assembling 5 ...
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Page 91: ...39 Detergent compartment Contents Description 3 ...
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