Tumble dryer — symptoms, diagnosis and maintenance
A tumble dryer needs free airflow, clean filters and correct condensate handling. Restricted airflow can lengthen cycles and raise temperature.
Safety rule: stop when there is smoke, sparking, a burning smell, electric-shock signs, an active leak, cracked hob glass or suspected gas. Disconnect only when it is safe to do so.
Common symptoms
Tumble dryer not heating
The drum turns, but laundry remains cool and damp.
Symptom diagnosisTumble dryer taking too long
Cycles take much longer than before or end with damp laundry.
Symptom diagnosisWater under tumble dryer
Water appears under the appliance or the condensate tank fills incorrectly.
Symptom diagnosisWhat to check before reporting
- Lint filter after every cycle
- Heat exchanger or lower filters per manual
- Condensate tank and drain
Maintenance
Clean the lint filter after every cycle and the heat exchanger as instructed.
Use the frequency stated in the specific model manual. Heavy use may require more frequent maintenance.
Add a planner date →How to approach tumble dryer diagnosis
- Record the full model and error code.
- Identify the cycle stage or condition when it occurs.
- Check only items the manual identifies as user-accessible.
- Do not restart after a hazard signal.
- Prepare the description and previous costs before a repair decision.