E8
Bosch
Internal Communication Error Between Control and Power Module
Bosch induction cooktop displays E8 and the affected zone cannot be used.
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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
Loose communication harness, Faulty control module, Faulty power module, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing internal components.
- Power reset: Turn off the breaker for 10 minutes, then restore power. If E8 clears temporarily, suspect an intermittent connection.
- Check harness: With the glass removed, inspect the communication cable between the user interface board and power module. Reseat connectors and check for damage.
- Inspect for burns: Look for any burn marks or corrosion on the connectors and boards.
- Module replacement: If wiring is intact and E8 persists, replace the control module or power module as recommended by Bosch diagnostics.
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Repair Difficulty
Professional Required
5/5
Required Part
Control Module
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