Spin noise
I've been told that the latest Bosch models when they spin are virtually silent. Is this the case and does any know why? (Without getting too technical)
Solution Summary
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Bosch washing machine spin noise query
- The problem
- The poster asked whether newer Bosch washing machines are virtually silent during spin, and why this would be the case.
- Likely cause
- The accepted explanation was that newer models may use brushless motors, which are much quieter than motors with carbon brushes. Remaining spin noise would still come from the motor to some extent, plus drum movement, cabinet vibration, suspension quality and any sound insulation fitted.
- What fixed it
- No repair was discussed. The thread provided a general explanation that quieter operation is most likely due to brushless motor design and overall machine build quality rather than a fault.
2 Answers
It’s most likely a lack of carbon brushes. The carbon brushes in a motor have to trail on the commutator which has lots of segments with a small gap between them. This creates noise.
Many modern washing machines these days have brushless motors so the motors are virtually silent on wash. The only sound on wash is the water sloshing about. However, on spin, although much quieter than a motor with carbon brushes you still get Some noise from the motor and the noise of the drum bouncing around and the cabinet vibrating.
To make a washing machine extra quiet on spin you need better quality suspension and higher quality parts in general - and a stronger cabinet, which is unlikely on a Bosch as they are good but in the budget to mid price range. They may have just fitted a lot of insulating material.
Need Professional Help or Spare Parts?
We bought a Bosch very recently and it one of these new really quite ones (which is greta), our only complaint it is seems to need a relatively large load to spin. We are forever adding a large towel to wash :-(
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