Shark Side Brush Drive Failure

Robot vacuum’s side brushes do not spin but no specific error code is shown

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.

Possible Causes

Side brush motors failed, Side brush gears stripped, Side brush connectors loose, Control signal failure from main PCB

Safety: Turn OFF and invert the robot.

Check brushes: Ensure side brushes are firmly attached and not jammed with hair.
Manual spin test: Spin each side brush by hand; they should rotate freely.
Test without brushes: Remove the brushes and run the robot; lightly touch the motor shafts to feel for rotation (do not force them).

If the motors do not turn at all, the side brush motor assemblies or main board outputs may be faulty and require replacement.

Hard 4/5

Side Brush Motor Assembly

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