Fault diagnosis
2017-05-22 / DIS 113_58300000186503_ara_en_c
Copyright by BSH Hausgeräte GmbH
Page 47 of 85
4.4
Noises
Fault
Possible cause
Troubleshooting
Air in the pump
► Normal noise
Switching pump during start-up
► Shaking function of the pump anti-clockwise/clockwise start-up
Noises
Noises during the draining process.
Foreign objects in the pump
► See instruction manual, "Cleaning the pump"
Structural design of the friction damper
► A load which occurs during operation may cause a noise in the friction damper.
► Advise customer:
Normal operating noise, not a fault.
Starting current of the motor
► On AC / DC motors check the rotor for damage.
Carbon brushes worn
► Replace carbon brushes.
High speed of motor
► Normal running noise when motor accelerates
Deceleration of the motor
► When starting, the motor draws a very high current. The high current generates
a powerful magnetic field. The laminated core, which forms the core of the motor
winding, oscillates under the influence of the magnetic field. A droning noise is
generated.
► Advise customer:
Normal operating noise, not a fault.
Screws on the weight loose
► Tighten screws; replace screws if required.
Weight broken
► Replace weight.
Deformation of the belt if the appliance is
not used.
► If the appliance is not used for a prolonged period, the belt is deformed by the
strong curvature of the pulley on the motor shaft. The deformed belt causes noises
when the drum rotates, particularly during the spin cycle. During normal operation
of the appliance the deformation regresses
► Advise customer:
Normal operating noise, not a fault.
Foreign objects under the drum
► Clean outer tub and waste water routes.
Noises when drum rotating
Noise when drum rotating
Components are resting against the hous-
ing (optional)
►
Noises during the spin cycle.
Appliance vibrates/jumps/wanders
►
Check that appliance is positioned correctly (Page 54)
► Have the height-adjustable feet been locked?
► Have the transportation protection devices been removed?
Solenoid valve of the water inlet is opening
or closing
► Normal noises not a fault
Noises when water runs in.
Water flow through the solenoid valve
► Normal noises not a fault