The short answer
On an AEG dryer, clothes not drying most often comes back to a blocked condenser or heat exchanger, with a blocked lint filter close behind. AEG machines are current-generation European appliances: sensor-driven, code-reporting, and built around a base tray with a flood switch that will take the machine out of service the moment it sees water. That puts the first move in your hands rather than a technician’s: work the checks below in order and stop at the first one that explains what you are seeing.
What you are seeing
- What this fault looks like, and which observations point somewhere else.
- the clothes are very hot but still wet
- the room or the machine feels humid at the end of the cycle
- only the outside of a large item is dry
- the load is still damp at the end of a full cycle
- Not this fault: if the cycle stops early instead of running long, read the cycle page
- Not this fault: if water is appearing outside the machine, read the leak page
Ranked causes on this platform
- Ranked for an AEG dryer, which runs a sensor-driven controller that reports a fault code on the display. No measured frequency exists for this address, so the order is platform judgement rather than a share.
- A blocked condenser or heat exchanger — Why: On a condensing machine the exchanger takes over from the vent, and lint blocks it steadily until nothing dries.
- A blocked lint filter — Why: A filter that looks clean can be sealed by fabric-softener film, and airflow is the whole of drying.
- Moisture sensor bars coated with residue — Why: Softener film insulates the sensors so they read dry clothes and end the cycle early, and the machine is behaving on bad data.
- Too large a load — Why: Clothes have to tumble through the air stream; a packed drum simply rotates as a mass and dries from the outside in.
- A load that arrived too wet — Why: A washer that did not spin properly sends far more water to the dryer, and the dryer takes the blame for the washer.
What to check, in order
- The order follows the ranking above: most likely and cheapest first, nothing needing a meter until everything else is eliminated.
- A blocked condenser or heat exchanger — Because: on a condensing machine the exchanger takes over from the vent, and lint blocks it steadily until nothing dries.
- A blocked lint filter — Because: a filter that looks clean can be sealed by fabric-softener film, and airflow is the whole of drying.
- Moisture sensor bars coated with residue — Because: softener film insulates the sensors so they read dry clothes and end the cycle early.
Checks you can safely do yourself
- Isolate the appliance before any panel comes off, and stop at the first step that explains the fault.
- Open the lower access, withdraw the condenser and rinse it until water runs clear. — Tools: a tap and gloves — Time estimate: allow half an hour
- Hold the filter under a running tap; water should pass straight through rather than sitting on it. — Tools: a tap and a brush — Time estimate: a few minutes
- Wipe the metal strips inside the drum with a little vinegar on a cloth. — Tools: a cloth — Time estimate: a few minutes
- Dry two-thirds of the same load and compare the time. — Tools: nothing — Time estimate: one cycle
- Stop condition: Stop there: the next step means metering live terminals or opening a sealed system.
Safety first
Safety
Unplug the appliance or switch off its breaker before removing any panel, because a capacitor can hold a charge after the power is off. Clear lint from the filter, the housing and the duct: accumulated lint around a heat source is the recognised hazard of this appliance class. Never run the machine with a panel off or the door interlock defeated, and never vent it into the room.
When to call a technician
Call a technician when the filter, the duct and the load are all right and the machine still will not dry, when the duct run has to be replaced, or when a heat-exchanger circuit is suspected. A vent that cannot be cleared from either end is a job for a duct service.
The fact bundle for this address was empty, so no warehouse figure appears. Every number on the page is a program safety constant, cited to its publisher. — Sources
General guidance- 1910.147 — The control of hazardous energy (lockout/tagout) — Occupational Safety and Health Administration, fetched 2026-09-06
Other faults documented for this brand and appliance. — Nearest pages of the same kind
What this page does not cover
This page is generalized across every AEG dryer family and model number: no family fault list, no model parts list, and no measured figure from the program warehouse. Where a family- or model-specific page exists it goes deeper, and it should be preferred over this one.
Links: - [Common AEG Dryer Problems](/blog/aeg-dryer-problems) - [AEG Dryer: Abnormal Noise or Vibration](/blog/aeg-dryer-abnormal-noise) - [AEG Dryer: Controls, Display or Error Code](/blog/aeg-dryer-control-fault)
Adjacent pages for what this one rules out. — Where to go next
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
