Test
2016-03-02 / DIS 840_58300000176874_ara_en_c
Copyright by BSH Hausgeräte GmbH
Page 35 of 157
5.5
Checking the drain pump
5.5.1
Checking the function and tightness of the drain pump
1. Check the drain pump using the customer service test programme.
2.
0
If fault codes are displayed
► perform the subsequent steps specified in the fault code table.
3.
0
If the drain pump makes any unusual (loud) noises
1) check it for foreign objects. Remove any foreign objects from the pump.
2) Check that the service hatch is correctly seated.
3) Replace the drain pump.
5.5.2
Checking the drain pump electrically
For measurements, see the circuit diagrams.
Prerequisite:
•
Appliance is disconnected from the power supply.
•
Base socket plate has been removed.
•
Toe panel has been removed (optional).
•
The connection to the drain pump is accessible.
Plug contacts may be damaged!
►
Check the plug contact. (Page 40)
1. Measure the winding resistance.
2.
0
If the resistance
does not
agree with the value given in the circuit diagram
►
replace the defective drain pump. (Page 90)
3.
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.
4.
0
If the line or plug-in connection is interrupted (R > 0)
► replace the defective cable harness.
5.
0
If the line is intact (R = 0)
►
replace the defective power module. (Page 91)