Test; Checking The Aquastop Valve - Bosch SPS40C12GB Repair Instructions

Test

5.1

Checking the Aquastop valve

5.1.1 Checking the function and tightness of the Aquastop
valve
1. Checking for correct installation (correct connection, hoses not kinked)
2. Visually inspect the connection for water droplets
3. Measure the flow rate. (2.5 l/min)
4. 0 If a flow rate of 2.5 l/min is not reached
1) check the flow limiter and filter in the AquaStop valve for dirt or
blockage.
2) Tap is furred up.
5. 0 If the flow rate of 2.5 l/min is exceeded
► the flow limiter is defective --> replace the valve
6. 0 If you cannot find any reason for the fault
► check the component electrically.
5.1.2 Checking the Aquastop valve electrically
For measurements, see the circuit diagrams.
Prerequisite:
• Appliance is disconnected from the power supply.
• The water tap is closed.
• Appliance is freely accessible.
• The rear of the appliance is accessible.
2016-03-02 / DIS 840_58300000176874_ara_en_c
Plug contacts may be damaged!
► Check the plug contact. (Page 40)
1. Release the stop tab (1). Fold out the cover with the inlet hose (2).
2. Release the electrical connector to the Aquastop valve and unplug it.
3. Measure the resistance of the Aquastop valve coil.
4. 0 If the measured resistance does not agree with the value given in the
circuit diagram
► replace the defective Aquastop valve.
5. 0 If the measured 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 or plug-in connection is interrupted (R > 0)
► replace the defective cable harness.
7. 0 If the line is intact (R = 0)
► replace the defective power module. (Page 91)
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