E12
Bosch
Dust Bin Presence / Full Sensor Error
Robot vacuum reports E12; dust bin icon flashes; robot refuses to start cleaning.
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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
Dust bin not fully seated, Dust bin presence microswitch stuck, Optical bin sensor blocked by dust, Broken bin latch
How to Fix / Troubleshooting
Safety first: Turn the robot OFF before removing the dust bin.
- 1. Remove and reseat bin: Pull out the Bosch dust container completely, then slide it back in firmly until it clicks.
- 2. Clean sensor area: Look for a small switch or optical sensor where the bin slides in. Use a dry brush or compressed air to remove dust buildup.
- 3. Inspect bin latch: Ensure the bin’s latch mechanism is intact and not cracked. A broken latch may prevent the bin from engaging the sensor.
- 4. Test without debris: Empty the bin, reinstall it, and try starting a short cleaning cycle.
- 5. If E12 remains: The bin presence switch or sensor on the mainboard may be faulty and will need professional replacement.
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Repair Difficulty
Medium
3/5
Required Part
Dust Bin Presence Switch
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