The short answer
A DV dryer that has turned noisy is telling you which of its rotating parts has worn, and the noise itself names the part. On this family the drum support and the blower are the two that wear first, which puts them above the belt in the order the brand-generic page uses.
What you observe
- A low rumble that rises with the drum speed — Worn drum rollers or their shafts; the sound is periodic and follows drum rotation.
- 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.
- 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 DV
- Worn drum rollers or glides — Ranked first on the DV family: this family carries the drum on supports that wear slowly and evenly, so the noise arrives gradually rather than overnight. What decides the order here is the protection chain, and on this family that chain is common to every model listed. What moves against the brand-generic order is lower down: belt glazed, frayed or the idler pulley worn sits above something loose in the drum or caught at the bulkhead here, because these models share one layout, so its weak point shows across the whole family.
- Blower wheel obstruction or a worn blower bearing — Second: anything small enough to pass the lint filter ends up in the blower housing, and at speed it announces itself clearly.
- Belt glazed, frayed or the idler pulley worn — Third: the idler carries constant tension on this family and squeals when its bearing dries out, usually loudest from cold.
- Something loose in the drum or caught at the bulkhead — Fourth: the free check, and the one that explains a noise which arrived from one load to the next rather than over months.
- Motor bearing wear — Last: last: a motor that has genuinely worn its bearings usually shows other symptoms first, such as a slow start.
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
Call when the noise is a rumble or a squeal that survives an empty drum, because both mean the machine comes apart. Call immediately if the noise is a scrape, since that will damage the drum while you decide.
Other DV pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.