The short answer
Noise from the BLH family is a wear diagnosis rather than a fault diagnosis: rollers, the blower wheel and the belt each make a different sound. That is where this page differs from the brand-generic article, which groups all drum noise together.
What you observe
- A high squeal that fades as it warms — A dry bearing or a glazed belt, typically loudest in the first minutes of a cycle.
- A rattle or buzz that changes with the load — Something loose in the drum or a coin in the blower housing, and it comes and goes.
- A scraping noise at one point per turn — Something caught between the drum and the bulkhead, which will mark the drum if left.
- A low rumble that rises with the drum speed — Worn drum rollers or their shafts; the sound is periodic and follows drum rotation.
- NEAR MISS - noise with no heat — Two faults or one; if the clothes are also cold, read the heating page as well.
Causes, most likely first on BLH
- Blower wheel obstruction or a worn blower bearing — Ranked first on the BLH family: anything small enough to pass the lint filter ends up in the blower housing, and at speed it announces itself clearly. Every model code in the table above shares the same airflow path, which is why this ranks first here and lower on the brand-generic page. This moves above worn drum rollers or glides, which leads the brand-generic order, because this family is a single build with fixed access points.
- Worn drum rollers or glides — Second: the drum rides on supports that wear evenly rather than suddenly, which is why the noise creeps up over months instead of appearing overnight.
- Something loose in the drum or caught at the bulkhead — Third: the free check, and the one that explains a noise which arrived from one load to the next rather than over months.
- Belt glazed, frayed or the idler pulley worn — Fourth: the idler is under tension whenever the machine runs, so its bearing dries out and squeals from cold before it does anything else.
- Motor bearing wear — Last: last, because a motor whose bearings have genuinely gone usually drags on starting long before it gets loud.
Check in this order, and why
- Empty the drum and turn it by hand with the power off — A rumble or a catch you can feel by hand localises the fault before anything comes apart.
- Check the feet are level and the machine is not touching anything — A cabinet against a wall amplifies normal noise and costs nothing to rule out.
- Check the lint filter housing and the blower for hard objects — Coins reach the blower through the filter housing and are the common rattle.
- Note whether the noise fades as the machine warms — A squeal that disappears after a few minutes is nearly always the belt or the idler.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. A thermal protection device that has opened is replaced with the correct part, and only after the restriction that opened it has been cleared: it opened for a reason, and that reason is still there.
When to call a technician
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Clearing the drum and the filter housing is owner work. A roller, belt or blower change means the cabinet opens, and on this family the drum has to be lifted out to reach any of them.
Other BLH pages
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Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
