Robot vacuum beeps and shows E3, will not move from starting position

Safety first: Turn OFF the robot and remove it from the dock.

• Step 1 – Check wheel movement: Flip the robot over. Manually rotate both drive wheels. They should spin freely and compress up and down in their suspension.
• Step 2 – Remove debris: Look around the wheel wells for hair, carpet fibers, or cords wrapped around the wheel axles. Use tweezers or small scissors to remove all obstructions.
• Step 3 – Free the suspension: Press each wheel up and down several times. If a wheel is stuck in the up or down position, gently work it until it moves smoothly.
• Step 4 – Clean encoders (if visible): Some OKP models have slotted encoder discs near the wheel motor. Blow out dust with compressed air; do not use liquids.
• Step 5 – Power cycle and test: Turn the robot ON, place it on a flat floor, and start a cleaning cycle. Observe whether it moves forward without error.
• Step 6 – If error persists: A failing drive wheel motor or encoder board is likely. Replacement of the affected wheel module is recommended and may require a technician if you are not comfortable opening the chassis.