E5
Bosch
IGBT Overtemperature / Power Stage Overheat
Bosch induction cooktop shows E5 and the zone stops heating.
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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
Blocked ventilation, Failed cooling fan, Continuous high-power operation, Degraded thermal paste on power module
How to Fix / Troubleshooting
Safety first: Turn off the cooktop and allow it to cool fully. Disconnect power before internal inspection.
- Improve ventilation: Ensure the cooktop has the required clearance and that cabinet fans or vents are not blocked.
- Check fan operation: Listen for the cooling fan when the cooktop is in use. If silent or very loud, inspect and replace the cooling fan as needed.
- Avoid prolonged max power: Use lower power settings or PowerBoost only for short durations as recommended.
- Service power module: If E5 recurs despite good ventilation and fan operation, the power module may be overheating internally and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Cooling Fan Assembly
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