The finding, first
Most noise complaints on this roster are rollers, a glide or a belt, and all three are wear items rather than failures. A rumble that rises with drum speed is a roller; a squeal is usually a belt or an idler; a thump once per revolution is a flat spot. Rollers and belts are consumables on a machine of this class. Checking your listing against the table takes a moment and saves ordering against the wrong catalogue.
What owners report
- A squeal or chirp that starts cold and eases as it warms — A belt or an idler pulley. The change with temperature is the distinguishing feature.
- A thump once per drum revolution — A flat spot on a roller, or a seam in the drum striking a worn glide.
- A scraping that follows the drum round — The drum is contacting the bulkhead because a felt glide has worn through. It will damage the drum if left.
- The noise is worse with a heavy load — Load-dependent noise points at supports rather than at anything in the airflow path.
- A grinding that appears suddenly — Something has broken or become trapped. Stop the machine rather than finishing the load.
- A deep rumble that rises with drum speed — Worn drum support rollers. It grows steadily over months and is loudest on a full load.
- NEAR MISS — the drum does not turn at all — A machine that will not tumble belongs on the start page for this family, not here.
What it turns out to be, in order
- Drum support rollers worn — First on this roster. The rollers carry the whole weight of a loaded drum for years, they run on small shafts, and as the bearings wear they produce a rumble that grows steadily and is loudest when the machine is full.
- Foreign object in the blower housing — The cheapest entry and one of the commonest. Coins, buttons and hairgrips pass the lint filter opening and strike the blower wheel on every rotation.
- Drum glides worn through — The felt or plastic pads the front of the drum rides on wear down, and the drum begins to contact the bulkhead directly. Scraping rather than rumbling, and it damages the drum if ignored.
- Drum seal failed — The felt seal at each end of the drum keeps air in and clothing out. When it goes, small items escape into the cabinet and the drum runs rough, which is a noise and a jamming risk at once.
- Motor bearing worn — Last. A motor bearing produces a noise that tracks motor speed rather than drum speed, and it is far less common than everything above it.
The diagnostic order for this family
- Turn the drum by hand with the door open — Roughness, resistance or a catch once per revolution tells you more than a running machine does.
- Note whether a squeal changes as the machine warms — A belt or idler eases as it warms; a roller bearing does not care about temperature.
- Listen for whether the noise tracks drum speed or motor speed — The drum turns far slower than the motor, so the rhythm of the noise identifies which one it belongs to.
Safety before diagnosis
Safety
Kill the supply before anything else happens: unplug it, or switch the breaker off. A capacitor can hold a charge long after the power has gone.
Models in the TLS family — The listings below are what this page covers; it is a family page, not a model page.
Reference| Model number | Family key |
|---|---|
| TLS752CAXXL# | asko:dryer:tls |
The line between a fix and a call
Stop at any scraping noise. A drum contacting the bulkhead is wearing metal on metal and every further cycle makes the eventual repair larger. That one is worth booking promptly rather than living with.
Nearest pages of this class
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
