E8
Bosch
Secondary Overheat / Thermal Fuse Protection Triggered
E8 error appears during operation; cooker may shut down unexpectedly.
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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
Failed or tripped thermal fuse, Blocked ventilation openings, Excessive ambient temperature around cooker, Control board misreading temperature
How to Fix / Troubleshooting
Safety first: Unplug and allow the unit to cool completely.
- Check ventilation: Ensure the cooker is used on a flat, heat-resistant surface with at least several centimeters of clearance on all sides. Do not operate under low cabinets where heat accumulates.
- Clean vents: Inspect and clean any side or bottom ventilation slots with a soft brush or vacuum to remove dust and grease.
- Avoid covering the lid: Do not place towels or covers over the lid during operation, as this can trap heat.
- Advanced inspection: If E8 recurs even with good ventilation, the internal thermal fuse or overheat sensor may be faulty. Access the base, locate the thermal fuse in series with the heater, and test/replace as needed.
- Professional service: Because this involves safety-critical components, replacement is best handled by an authorized Bosch service center.
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Repair Difficulty
Professional Required
5/5
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