The short answer
The first question on these models is whether the load comes out hot and damp or cool and damp, because the two lead to opposite halves of the page. Cycle times that have grown gradually over months are an airflow story told slowly. Only the heat source and its controls take this off the owner list. The part numbers are deliberately left to the table, because they are the one thing that does vary here.
What you actually see
- Cycles take far longer than they used to — Gradual airflow loss. Lint builds over months, so nobody notices the day it changed.
- A burning or scorched smell during the cycle — Stop the machine. Lint at temperature in a restricted cabinet is the fire risk this page exists to prevent.
- The load comes out hot but still damp — Heat is being produced and moisture is not leaving. That is an exhaust problem, and it is the commonest finding here.
- The load comes out cool and damp — No heat at all. A different half of the page: supply, element or igniter rather than airflow.
- NEAR MISS — the drum does not turn at all — A machine that will not tumble is a different fault path with its own page for this family.
Ranked causes for these models
- Restricted exhaust duct, vent hood or lint path — First on this roster and the commonest finding on the page. Crushed flexible duct behind the machine, a long run with too many bends, a hood flap that no longer opens, or years of lint in the run all cut airflow until a cutout opens.
- Blocked lint filter or filter housing — A filter that looks clean can still be blinded by fabric-softener residue, which passes water poorly and is effectively invisible. The housing below it packs solid where nobody looks.
- Half supply — one leg of the circuit lost — An electric dryer draws its motor from one leg and its heat from both. Lose one and the drum turns perfectly while nothing gets warm, which is the single most misleading symptom here.
- Control, timer or moisture sensor fault — Last. This explains a machine where the duct is clear, the supply is good and the cutouts are closed, and it is where owner diagnosis runs out.
What to check first, second, third
- Clean the lint filter and the housing below it — The filter is routine; the housing is not, and lint packs into it where nobody looks.
- Feel the load at the end of a cycle — Hot and damp means heat is being made and air is not moving. Cool and damp means heat is not being made at all.
- Watch the vent hood outside while the machine runs — A flap that barely lifts is the clearest airflow test available and it costs nothing.
- Pull the machine out and look at the duct behind it — Flexible duct crushed against a wall is the commonest single restriction in a laundry room.
- Disconnect the duct and run a short cycle — If it heats normally with the duct off, the machine is fine and the run is the fault. Do this briefly and with the room ventilated.
Isolate first
Safety
Pull the plug, or trip the breaker if the machine is hard-wired, before a single screw comes out — and remember that a capacitor stays charged after the supply is gone. On a gas machine, close the appliance shut-off valve before disturbing any fitting.
Models in the TL family — A family page. These rows are what it generalizes over.
Reference| Model number | Family key |
|---|---|
| TL751 | asko:dryer:tl |
| TL751T | asko:dryer:tl |
Where the owner line is
The owner line on this family is the cabinet panel. Cleaning the lint path, clearing and reseating the duct, checking the hood and checking the breaker are all yours.
Other pages for this family
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Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
