Service manual

21
21. Control unit
4
Service
Manual
2
5925
Front control unit
X30
X38
X39
X37X28 X31
X27
X33 X34
X21
X20
X24
X26
X11 X12 X13 X14
X92
X97
X91X90
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