Checking The Dispenser - Bosch SPS40C12GB Repair Instructions

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Test
5.16

Checking the dispenser

The customer service test programme can be used to check the dispenser system.
The first dispenser impulse opens the dispenser cover, subsequent impulses
control the dispensing of rinse aid (1 ml rinse aid each time).
If the doors are not opened sufficiently it may happen that no rinse aid gets into the
appliance because the measuring chamber is not filled.
If the appliance door is opened the trigger mechanism will be reset. This has the
effect that next time the coil is addressed the detergent cover will be opened first.
5.16.1
Checking the dispenser electrically
For measurements, see the circuit diagrams
The dispenser can be replaced only as a unit.
Prerequisite:
Appliance is disconnected from the power supply.
Cabinet panel has been removed (optional).
Outer door has been removed.
Plug contacts may be damaged!
Check the plug contact. (Page 40)
2016-03-02 / DIS 840_58300000176874_ara_en_c
1. Release the electrical connector to the coil and unplug it (1).
2. Release the electrical connector to the low rinse aid sensor and unplug it (2).
3. Measure the resistance of the dispenser.
4. 0 If the resistance does not agree with the value given in the circuit diagram
replace the defective dispenser. (Page 155)
5. 0 If the resistance does agree with the value given in the circuit diagram
► check the line resistance R at the plug-in connections.
6. 0 If the line is defective (R > 0)
► replace the defective cable harness.
7. 0 If the line is intact (R = 0)
replace the defective power module. (Page 91)
Copyright by BSH Hausgeräte GmbH
Page 50 of 157

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