E4
ILIFE Right Wheel Stall / Right Drive Motor Error

Robot displays E4 and cannot move properly, often spinning or dragging on one side

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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

Hair or debris wrapped around right wheel axle, Right wheel suspension jammed, Right drive motor gearbox worn or seized, Right wheel motor connector loose

How to Fix / Troubleshooting

Safety first: Turn OFF the robot and place it upside down on a soft surface.

Step-by-step:

  • Inspect the right wheel: Rotate the right drive wheel by hand. Compare resistance to the left wheel. Any stiffness or grinding indicates debris or damage.
  • Remove obstructions: Carefully cut away hair and fibers from the axle and wheel cavity using small scissors or tweezers.
  • Check vertical movement: Press the wheel up into the body and release. It should move freely. Clean around the suspension pivot if it sticks.
  • Clean tire surface: Wipe the rubber tire with a damp cloth to restore traction.
  • Test operation: Power the robot ON and start a cleaning cycle on a flat surface. Watch if the right wheel turns consistently.

If E4 persists: The right wheel motor or internal gearbox is likely failing. Replacement of the right wheel motor assembly is recommended; this involves opening the bottom cover and unplugging the motor harness from the main control board.

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Repair Difficulty

Medium 3/5

Required Part

Right Wheel Motor Assembly
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