Bomann Reduced Heating Capacity / Element Degradation

Oven heats but does not reach 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

Partially failed heating element with high resistance, One of multiple elements not energizing, Faulty temperature sensor reading too high, Poor door seal causing heat loss

How to Fix / Troubleshooting

Safety: Disconnect power before internal checks.

Steps:

  • Test each heating element (top, bottom, convection) individually by selecting modes that use them and feeling for heat (without touching elements directly).
  • Access the rear panel and measure resistance of each element; compare with typical values or service data. Replace any element with open circuit or significantly higher resistance than specified.
  • Inspect the door gasket for gaps, tears, or compression loss. Replace if it does not seal evenly around the door.
  • Check the NTC temperature sensor for correct resistance at room temperature; replace if out of range.
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Repair Difficulty

Medium 3/5

Required Part

Lower Heating Element
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