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Bosch

Bosch Classixx 6 Banging noises

CHchris_dixon
Asked over 7 years ago 2,554 views
0

Bosch Classixx 6 machine making banging noises but only on spin cycle at certain speeds.

see video at: https://youtu.be/nBp3AMa9pkk

I would like to know if anyone thinks it's the bearings, or something else.

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Bosch Classixx 6 bangs on spin when loaded, with excessive drum movement

The problem
A Bosch Classixx 6 washing machine made banging noises only during parts of the spin cycle. The drum felt smooth when rotated by hand and did not initially appear wobbly, but when the machine was loaded the inner assembly moved enough for the drum to knock against the front metalwork.
Likely cause
The strongest evidence points to excessive drum/tub movement under load rather than drum bearings. The belt-off drum rotation was smooth and the drum pulley was reported as not loose. The exact failed component was not confirmed in the discussion.
What fixed it
Recommended action was to disconnect the appliance from the mains, remove the lid and back panel, and physically shake/bounce the drum to trace the source of the noise and check for anything loose. The pulley and visible bolts were checked by the poster and no fault was found there. Further diagnosis of the suspension/supporting components was suggested by observing whether the drum sat centrally or leaned to one side, but no final repair was documented.
Checks to try
  • Drum rotated by hand with belt removed and was smooth
  • Drum pulley checked and found not loose
  • Visible bolts checked with no loose bolts seen
  • Legs and top springs inspected and appeared seated correctly
  • Empty 1200 spin test carried out; only small vibration noted
  • Loaded test with one towel caused severe rocking and drum knock
  • Drum could be moved by hand until it banged the front casing

Safety: Disconnect the appliance from the mains before removing panels or inspecting inside. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 12 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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6 Answers

Accepted Answer
0
WH
WhitegoodshelpVerified Engineer
Answered over 7 years ago

The best way to investigate this is to disconnect the washer from the mains. Then take off the lid on the back panel. Pull it out and then vigorously shake the drum about from side to side and bounce it around. Does this trigger a similar noise? If it does it just needs locating by ear. You just have to work out where the noises coming from. Also check for loose bolts etc. I have two lengthy articles about noisy washing machines which you should closely read, but ultimately the only person that can diagnose a noises someone that is actually there and can work it out. One other thing to double check is the drum pulley. They can make some strange noises. So take off the drive belt and make sure that the drum poorly on the back of the drum isn't loose.

Causes of a noisy washing machine

More causes of a noisy washing machine

Whitegoods Help — appliance repair expert and forum host.
0
CH
chris_dixon
Answered over 7 years ago

Any ideas?

the banging only occurs at certain speeds in a range and the drum does not appear wobbly or make noise when I rotate it.

0
CH
chris_dixon
Answered over 7 years ago

Thank you.

with the belt removed the drum spins no problems, nice and smooth. Pulley is not loose. No loose bolts that I can see. The legs underneath and the springs on top seem seated well and nothing looks out of place.

I gave it a 1200 speed spin with nothing in it, and aside for some small vibrations at some point on the cycle it was fine.

Loaded it up with one towel and it rocked so alarmingly that the drum started knocking onto the metalwork at the front causing the noise.

So I'm confused. It didn't used to do this, so I assume something has changed, but nothing I can see.

0
WH
WhitegoodshelpVerified Engineer
Answered over 7 years ago

Hello Chris. It is normal for a washing machine drum to become violently out of balance if you only have one towel in. In fact most washing machines won't even spin now as they are fitted with out of balance sensors. It seems like the noise is being caused when washing inside the drum causes the drum to move about. Have you tried forcefully shaking and bouncing the drum from side to side to see if you can get it to make any noise?

Whitegoods Help — appliance repair expert and forum host.
0
CH
chris_dixon
Answered over 7 years ago

I can move the drum so much by hand the the drum itself bangs against the metal case of the front of the machine, which is what the noise sounds like when running.

0
WH
WhitegoodshelpVerified Engineer
Answered over 7 years ago

Hello Chris. Is the drum being held centrally inside the casing or is it leaning heavily to one side? Disconnect from mains and then take off the lid and back panel to observe.

Whitegoods Help — appliance repair expert and forum host.

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