Range High Severity
F1 Appliance Error Code

Asko Range F1 Error: Oven sensor fault

Asko range F1 error is a common issue reported by Asko appliance owners. What Does Asko Range Error Code F1 Mean? F1 on an Asko freestanding range indicates the oven cavity temperature sensor (NTC thermistor) has failed or is reading outside its valid operating range. The range’s shared control board monitors this sensor continuously; when […]

By Denys Mitchell Lead Appliance Repair Specialist & Technical Writer

Sometimes

DIY Fixable

From $120

Typical Repair Cost

30-60 min

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Maybe. The induction cooktop surface of the range can be used normally. The oven section must not be used while F1 is active — it cannot regulate temperature safely.

Can I reset the code?

Yes. A breaker reset clears F1 from the display. The code will return immediately when the oven is next activated if the sensor has not been repaired.

When to stop immediately?

Stop if you notice: Stop using the oven section immediately if F1 appears during a cooking cycle., Do not attempt repeated resets hoping the fault will self-clear — this will not repair a failed sensor..

Symptoms You May Notice

Oven section will not heat at all

Setting any oven programme results in a cold cavity — neither the bake element, broil element, nor the convection fan element activates when F1 is active.

F1 on oven display immediately after power-on

The oven section displays F1 as soon as the range is powered on, before any cooking mode is selected, indicating the sensor is already reading an invalid value.

Oven programme cancels mid-cook

If the sensor fails during a cooking session the oven mid-cycle cancels itself, reverts to standby, and shows F1 on the display.

Induction cooktop surface operates normally

The induction zones on the range top continue to function correctly, confirming the fault is isolated to the oven section sensor circuit rather than the main power supply.

Possible Causes

1

Open-circuit NTC sensor

The thermistor element inside the oven cavity has burned out, sending an OL resistance reading to the control board and triggering F1.

DIY Possible
2

Corroded sensor connector

Heat cycling causes the two-pin sensor connector at the rear of the oven cavity to develop corrosion, increasing connector resistance until the signal is lost.

DIY Possible
3

Control board sensor input failure

The ADC input circuit on the main PCB that reads the NTC signal has failed, causing F1 even if the sensor itself tests within specification.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Power-cycle the range

    Turn the range circuit breaker off for 5 minutes to fully reset the control board, then restore power. Observe whether F1 appears immediately or only after attempting to start an oven programme.

    If F1 clears after a reset and the oven heats normally, monitor over the next several uses — intermittent resets suggest a loose connector rather than a fully failed sensor.

  2. 2

    Inspect sensor connector

    With power off and the oven fully cool, remove the back panel inside the oven cavity (usually two screws) and locate the two-pin NTC connector. Check for green or white corrosion on the pins and ensure the connector is firmly seated.

    Clean corroded pins with electrical contact cleaner spray and reconnect firmly before restoring power and retesting.

    Tools required
  3. 3

    Measure sensor resistance

    Disconnect the sensor connector and measure resistance across the sensor's two pins with a multimeter set to resistance (Ω). At room temperature (20 °C) the sensor should read approximately 10,000 Ω. An OL or near-zero reading confirms sensor failure.

    Always replace with an OEM Asko NTC sensor for your range model number — the temperature–resistance curve varies between models.

    Tools required

When to Call a Professional

Contact a qualified technician if:

  • F1 returns immediately after a power reset with no cooking cycle started — sensor is reading invalid at room temperature.
  • Sensor resistance tests within specification but F1 persists — indicates a control board fault.
  • The sensor connector shows heat damage or melted plastic around the terminals.

Need Professional Help?

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