Asko Underheating / Long Preheat

Oven heats but does not reach the set temperature or takes excessively long to preheat.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Weak or partially failed bake element, Faulty temperature sensor calibration, Poor door seal causing heat loss, Incorrect oven calibration in control settings

How to Fix / Troubleshooting

Safety first: Turn off power before testing elements or sensors.

  • Check bake element: Inspect for small cracks or hot spots. Test resistance and compare to specifications. Replace if significantly higher than normal or if there are visible defects.
  • Verify temperature sensor: Measure resistance at room temperature and at a known elevated temperature (e.g., 100°C using boiling water if sensor can be safely removed). Replace if readings are out of range.
  • Inspect door gasket: Check the door seal for gaps, tears, or compression. Replace the gasket if it does not seal evenly all around.
  • Calibrate oven (if available): Some Asko models allow temperature offset adjustment in the settings menu. Use an accurate oven thermometer to compare actual vs. set temperature and adjust according to the user manual.
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Repair Difficulty

Medium 3/5

Required Part

Bake Element
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