Bosch Classixx 1200 Express Drum Stability
Youtube Video
I've made a video of the problem. I'm an electronics engineer, so not daft.
I've checked the springs which seem fine, as do the dampeners. The concrete also seems stable. I did recently move home and ever since the machine has been incredibly noisey which has gotten progressively worse/developed into a knocking noise.
Is it the bearings? Can I fix it? Any help appreciated as I don't really have a clue. I've replaced the brushes but apart from that it's never failed me over the last 16 years.
Cheers
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 1200 Express noisy drum/knocking after house move
- The problem
- The washing machine became very noisy after being moved home, with the noise progressively worsening into a knocking sound. The owner said the springs, dampers and concrete weight appeared stable, and the machine was stable when empty. The knocking could be partly reproduced by shaking the drum/cabinet with the machine unplugged, and was mainly present when the drum had a load inside.
- Likely cause
- A loose component at the rear of the machine was suspected from the ability to reproduce the noise by shaking it. One forum reply also suggested these Bosch Classixx machines can suffer a fractured drum spider arm, especially where the noise appears only under load. Bearings were queried by the owner but not confirmed in the discussion.
- What fixed it
- Recommended action was to trace the source of the noise by shaking the unplugged machine and inspecting the rear area to find what was loose. A fractured spider was suggested as a known possibility, but the thread did not confirm the exact failed part or a completed repair.
- Checks to try
- Checked suspension springs
- Checked dampers
- Checked concrete weight/stability
- Reproduced noise by shaking the unplugged drum/cabinet
- Planned removal of rear guard for closer inspection
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
4 Answers
Can you reproduce the knocking noise with machine unplugged and shaking drum around? Or moving cabinet from side to side.
Need Professional Help or Spare Parts?
Yeah I can replicate it, kind of, the sound comes from the back of the unit but only when it has any sort of load inside it - it sounds like the bearing but it's completely stable when it's empty. I'm going to remove the rear guard tomorrow and take a closer look.
Yes Tracing noises like that is a matter of shaking it about and seeing where the noise is coming from. Something is loose.
Need Professional Help or Spare Parts?
Hi, Those Classixx w/ms are known for the spider to fracture an arm... Take a look on youtube for some examples. Also how to replace a spider (the rivets have to be drilled out and replaced with bolts) It's quite a job as the outer drum has to be split open, but repair kits are available, depends how hands-on you are.
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