The short answer for the DC models
On the AEG DC dryer models, a noise or a vibration that is new leads somewhere the brand-generic article does not put first — a restricted or loose vent duct. The brand-generic ordering opens instead with this: something loose in the drum or in a pocket. It moves down behind the lead here, because the two codes in this family share a platform, so a cause that is real on one is real on both.
What you observe on these models
- The noise came with the machine being moved — Feet, floor and something dislodged are far more likely than a coincidence.
- Vibration through the floor rather than noise from the cabinet — The machine is coupling into the structure.
- A thump once per drum revolution — Slow and rhythmic points at the drum itself or at something riding on it.
- NEAR MISS — the machine is noisy and the clothes are not drying — Take the drying as the lead; the heating page covers it.
Causes, most likely first on the DC family
- A restricted or loose vent duct — A flapping duct rattles and a restricted one makes the blower whistle. Ranked first on the DC models.
- Something loose in the drum or in a pocket — Coins, zips and a stray screw make a rattle that sounds far more expensive than it is. Second.
- The condenser, the water tank and the second fan — A machine that condenses rather than venting has an extra fan, a condenser block and a tank to pump into, and each of them makes a noise a vented machine does not. Third.
- The motor bearings — It is the noise that is present the instant the motor runs and never varies, and it is the only one here that is not a cheap part. Last, and that is the point of the order.
- Body: The spine for the DC family records two model codes that share their stem and differ only in what follows it, so the two behave as one platform for this fault. Where this departs from the brand-generic ordering: the cause that moves up on these models is this one — a restricted or loose vent duct — and the brand-generic lead moves down behind it.
Check in this order on the DC models, and why
- Find out whether your machine vents to the outside or condenses into a tank — First: It decides which half of this list applies, and a condensing machine has noise sources a vented one simply does not have.
- Turn the drum slowly by hand a full revolution — Second: Feel for a rough spot and listen for a scrape at one point.
- Note whether the noise tracks the drum or the fan — Third: A drum-speed noise and a fan-speed noise come from opposite ends of the machine.
Before you open anything
Safety
Isolate the dryer at the breaker before the cabinet comes open: the element terminals stay live at the block until it is off, and the circuit is a high-current one. Clear the lint out rather than pushing it further in, and never run the machine with a panel off. On a gas machine, close the appliance valve first, and if you smell gas leave the building and call the gas utility from outside.
Models covered by the DC family
Reference| Model number | Family key |
|---|---|
| DC240 | aeg:dryer:dc |
| DC240-1 | aeg:dryer:dc |
When to call a technician
Call when the drum scrapes or thumps with nothing in it, when the noise is there from the moment the motor starts regardless of the drum, or when the machine has been levelled and the duct cleared and the noise is unchanged. Stop using it and call immediately if you smell burning, if the cabinet is hot to touch, or if the noise arrived with clothes coming out scorched. On the DC models the line sits where the check stops being one you can make from outside the cabinet. When you book, say that the machine is built in if it is.
Other symptoms covered for the DC family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
