Samsung
Immediate Stall / Start‑up Failure
Robot vacuum starts but stops after a few seconds without an error code, often in the same spot.
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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
Main brush or wheel jam, Faulty internal sensor causing safety stop, Weak battery unable to supply start current, Firmware glitch
How to Fix / Troubleshooting
Safety first: Turn off the robot before inspection.
- Check for jams: Remove the main and side brushes and inspect wheels for debris. Ensure all moving parts rotate freely.
- Test without brushes: Run the robot briefly without brushes. If it moves normally, the issue is likely with a brush or brush motor.
- Charge fully: Place the robot on the dock and charge for at least 3–4 hours, then test again.
- Reset firmware: If supported, perform a factory reset via the app or button sequence (consult manual). If the issue persists, internal sensors or PCB may need service.
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Repair Difficulty
Medium
3/5
Required Part
Main Brush Motor
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