Checking The Water Switch - Bosch SPS40C12GB Repair Instructions

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Test
5.14

Checking the water switch

For measurements, see the circuit diagrams.
5.14.1
Visually check the operation of the water switch
Prerequisite:
The appliance is connected to the power supply.
The viewing door has been mounted.
1. Start the customer service test programme. (Don't use an ordinary programme,
because the length of time until the water switch is activated varies with each
programme!) Wait until the water switch is activated.
2. 0 If the upper and lower spray arms do not rotate alternately,
replace the defective water switch. (Page 149)
5.14.2
Checking the water switch electrically
Prerequisite:
Appliance is disconnected from the power supply
The dishwashing container has been tilted down.
Plug contacts may be damaged!
► Check the plug contact.
2016-03-02 / DIS 840_58300000176874_ara_en_c
1. Release the electrical connector to the water switch and unplug it.
2. Measure the resistance of the motor winding in the water switch.
3. 0 If the resistance does not agree with the value given in the circuit diagram
replace the defective water switch. (Page 149)
Copyright by BSH Hausgeräte GmbH
Page 48 of 157

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