Trifo Side Brush Non-Operation Without Fault Code

Robot vacuum's side brush does not spin, but no error code is shown

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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

Side brush motor partially failed, Side brush connector loose, Side brush stripped hub, Firmware not detecting stall

How to Fix / Troubleshooting

Safety first: Turn OFF the robot and flip it over.

  • 1. Check brush attachment: Ensure the side brush is firmly attached and the screw (if present) is tight.
  • 2. Inspect hub: Remove the brush and check for a stripped or rounded hub. Replace the brush if damaged.
  • 3. Test motor: With the brush removed, gently rotate the motor shaft. If it is stiff or does not move, the motor may be failing.
  • 4. Replace motor: If the motor does not run during cleaning even after cleaning and reseating, replace the side brush motor module.

Warning: Do not force the motor shaft; this can damage the gearbox. Use only compatible Trifo side brush motors.

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Repair Difficulty

Medium 3/5

Required Part

Side Brush Motor
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