The answer first
On the BWM line a new noise is a filter question first, because the sump on the models listed in the table on this page sits directly below the drum and anything that leaves a pocket lands in it. The brand-generic page starts with the load; here the filter comes first because this platform puts it within reach.
What you are seeing
- A heavy knocking that walks the machine across the floor — Hammering at spin-up with movement is a balance and levelling problem.
- A drone that is present at every speed — Constant-pitch noise points at the motor rather than the tub. This is where the BWM line differs from the brand’s other lines.
- The noise started after the machine was moved — Any noise dated to a house move has a short list of causes.
- A metallic tinkle during the wash — Small metallic sounds mean small metallic objects; find them before they cut something.
- A rhythmic thump at low drum speed — Low-speed thumping is load distribution rather than machinery.
- NEAR MISS — the noise is the drain pump running normally — Normal pump-out noise is often mistaken for a new fault on a quiet machine.
- NEAR MISS — the machine is new and still has transit bolts fitted — Transit bolts lock the drum for delivery. Left in, they produce a hammering that sounds terminal and harms the machine.
The ranking that matters
- An unbalanced or bulky load — First — and it is not close. One heavy item gathers to one side and the machine hammers at every spin attempt. Nothing has failed and nothing needs replacing. On the models listed in the table on this page the access for this is the same across the line.
- A worn or slipping drive belt — Next most likely. A glazed belt squeals under load and slips at spin-up, so the drum never reaches speed.
- Worn suspension dampers or springs — Then this one. Damping wears out gradually, so the machine passes balance checks less and less well and eventually knocks on every spin. The BWM line is no worse than its siblings here, but it is no better either.
- Coins or keys between the drum and the tub — Fourth, and getting rarer. Objects that pass the drum perforations rattle in the gap and can eventually tear either surface.
- An object between the drum and the tub — Rarer again. This one damages the machine if it is left, which is why a scraping noise should stop the machine today.
The order to check in
- Note whether the pitch rises with the spin — Pitch behaviour separates the two expensive causes.
- Run an empty drum on a spin-only programme — No load means no balance variable, so what remains is the machine itself. On the models listed in the table on this page this is the check that decides the job.
- Check the machine is level and does not rock — Level the cabinet before condemning any part.
- Clean the drain filter and look for debris — Empty the filter into your hand and see what falls out.
Isolate it first
Safety
Unplug the appliance or switch off its breaker, then shut the water off. Never run a cycle with a panel removed, and leave the door lock exactly as it is: it keeps the drum shut while it spins and that is its whole purpose.
Models in the BWM family
Reference| Model number | Family key |
|---|---|
| BWM242300SWW | beko:washer:bwm |
| BWM7200X | beko:washer:bwm |
Where the owner line is
Stop and call if the noise arrives with water at the back of the machine: a tub seal leaking into a bearing is the one combination on this page that gets more expensive every week it runs.
Nearby pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
