Electronics System; Connect Service Module; Check The Key Switch - Kärcher BR 45/40 Service Manual

9.4 Electronics system

9.4.1 Connect service module

Note
The service module can be connected starting with
control version 2.0.
The service programme of the service module must
be at least version V 4.0.

Remove rear appliance cover.
1 Control board
2 Connection plug service module

Connect both connecting cables to the service
module.

Connect the connecting cable to the control PCB.
Green LED lights up on service module.

Connect the USB cable to the computer.

Select control type.

Select the setting "Service programme operates
compact control".

Click online connection.
Green LED blinks on service module.

9.4.2 Check the key switch


Remove operating panel.
1 Key switch
2 Detergent switch

Pull the connector plug off the key switch.

Connect the resistance measurement device to
the plug connections on the key switch.
Target value:
Key switch in position "0".
> 1 MOhm
–
Key switch in position "1".
< 2 Ohm
–
If one of the values is not reached, the key switch is
defective and must be replaced.
Installation in reverse order
English 5.906-269.0 Rev. 00 (03/11)
77