Asko Dryer E1 Error: Temp sensor fault
Asko dryer E1 error is a common issue reported by Asko appliance owners. What Asko Dryer Error Code E1 Means Error code E1 on Asko dryers indicates a fault in the NTC temperature sensor circuit. The control board monitors drum air temperature via a thermistor; when this sensor returns a value outside the valid operating […]
Sometimes
DIY Fixable
From $150
Typical Repair Cost
45-90 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. An active E1 means the temperature control circuit is not functioning. The heater may not work at all, or may run without proper regulation. Do not use the dryer until the sensor is confirmed working.
Can I reset the code?
Yes. Power off at mains for 60 seconds to clear the code. After cleaning the lint filter and condenser and reseating the connector, the error may not return. If it does, the NTC needs replacement.
When to stop immediately?
Stop if you notice: The drum interior feels excessively hot immediately after a short cycle — heater may be running without limit., A burning smell is present when the dryer runs — could indicate lint scorching near a failed-open heater..
Symptoms You May Notice
Drum runs but produces no heat throughout the cycle
The drum rotates normally and the fan operates, but after a full drying cycle the laundry comes out as damp as it went in — no heat was applied at any point.
Cycle aborts within the first 10 minutes
The dryer starts, the drum begins turning, and E1 appears on the display within the first few minutes before any meaningful drying has occurred.
Overheating — clothes feel very hot and drum is unusually warm
In rare cases where the sensor fails to an open-circuit reading, the heater may run unchecked, making the drum interior excessively hot to the touch.
E1 appears consistently on every cycle regardless of programme
The fault occurs on cotton, synthetic, and delicate programmes alike — a consistent E1 across all settings points firmly to the temperature sensing circuit rather than a load or filter issue.
Possible Causes
Failed NTC thermistor
The NTC sensor element has failed, returning a resistance value that falls outside the valid operating range. The control board interprets this as either a dangerously high or nonsensically low temperature and stops the heater.
Requires ProfessionalLoose or corroded NTC wiring connector
The 2-pin harness connector on the NTC sensor has worked loose through vibration or developed contact corrosion, creating an intermittent open-circuit condition.
DIY PossibleLint build-up insulating the sensor
On Asko condensing and heat-pump dryers (T608, T712, DC7 series) lint accumulation around the NTC sensor housing can thermally insulate it, causing it to read lower than the true temperature.
DIY PossibleSafe Checks You Can Do
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1
Clean the lint filter and condenser
Remove the lint filter (inside the door opening) and clean it thoroughly under running water. On Asko condenser and heat-pump models, also open the condenser access panel (lower front) and carefully vacuum the condenser fins and the NTC sensor area. Rinse the condenser as per the owner manual.
The lint filter should be cleaned after every single cycle on Asko T-series dryers. A partially blocked filter reduces airflow past the NTC sensor and can cause false E1 readings.
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2
Reseat the NTC sensor connector
Unplug the dryer. Access the NTC sensor — on most Asko T-series models it is located in the heater housing or exhaust duct, reachable by removing the rear panel. Disconnect and firmly reconnect the 2-pin plug. Check for green or black discolouration on the pins indicating corrosion.
If pins are corroded, clean them lightly with a dry cloth. Do not use contact spray near heat-pump components.
Tools required -
3
Power cycle and run a test with a small load
Restore power and run a 30-minute Cottons-Low cycle with two or three dry towels as a test load. Check for warmth after 10 minutes by briefly opening the door. If heat is present and E1 does not return, the fix is successful.
Running a test with a small dry load rather than wet laundry reduces the demand on the heater and sensor, making it easier to isolate the fault.
When to Call a Professional
Contact a qualified technician if:
- NTC sensor resistance at room temperature falls outside 10–12 k-ohm — sensor replacement required.
- Sensor replacement on Asko T608, T712, and DC7 series dryers starts from $95.
- Connector and sensor are intact but E1 persists — control board heater relay requires professional testing.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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