Ecovacs Deebot 900 Troubleshooting

When the power button is pressed, the vacuum does not turn on and the Deebot does not move.

Check that the red power switch inside the filter compartment is in the “On” position. (This is the side with the | line, not the 0.)

The Deebot 900 comes with a docking station for charging. Ensure that the docking station is both plugged in and accessible to the Deebot. Check that the metal charging plates on both the bottom of the Deebot and the docking station are clean.

If the power switch is in the “On” position and nothing is interfering with the charging process, the Deebot’s battery may be malfunctioning or faulty. For a guide to replacing the battery, follow this link.

The Deebot is running, but only moves in a spinning or circular pattern.

Hair or debris wrapped around the wheels can prevent them from moving properly. Check the wheels for any debris or hair. Any blockage can be removed using scissors, a brush, or other tools as necessary. If the wheel needs to be replaced, follow this link.

If there is no debris and the wheel is still not moving, hold the robot upside down while the Deebot is running and check to see if both wheels are moving. If one wheel is not moving, then the wheel motor may need to be replaced or connections need to be checked.

If the wheels are not jammed and both motors are working, then check to see if the front bumper is stuck by pressing the front in. If the bumper pops back out, then it is not stuck. If the bumper does not pop back out, the bumper may need to be cleaned or replaced. For a guide to replacing the front bumper, follow this link.

If the 5 anti-drop sensors on the bottom of the Deebot are dirty, the Deebot may respond as if there is a drop in its path and try to avoid it. If this happens, clean all of the sensors on the Deebot with a dry cloth.

The Deebot has power and is turned on, but it does not move in any direction.

Hair or debris wrapped around the wheels can prevent them from moving properly. Check the wheels for any debris or hair. Any blockage can be removed using scissors, a brush, or other tools as necessary.

If there is no debris and the wheels are still not moving, hold the robot upside down while the Deebot is running and check to see if both wheels are moving. If neither wheel is moving, then the wheel motors may need to be replaced or connections need to be checked.

If there is no debris blockage and both motors are functioning and/or have been replaced, then the Deebot’s motherboard might be damaged. This could be for several reasons, but vacuuming up any liquid is one of the most likely as it will instantly fry the motherboard unless the Deebot is turned off immediately. If the motherboard is damaged, replace it. For a guide to replacing the motherboard, follow this link.

When the Deebot on, the vacuum is running but not picking up debris.

If the Deebot’s dust bin is full, it will not pick up any debris. Check the dust bin by opening the dust bin compartment, removing the dust bin, and emptying any contents.

If the Deebot vacuumed up a large piece of debris, it may be blocking the vacuum. Open the dust bin compartment and remove the filter. Check to see if something is blocking the entrance of the dust bin, and if so, remove it.

If the dust bin is empty and the vacuum is not blocked, but the vacuum is still not picking up debris, the vacuum seal is likely broken. Without this seal, the vacuum cannot function to pick up debris. To fix the seal, check the plastic casing for cracks and other places air could escape, and tape any cracks closed with Duct Tape or other sealants. For a guide to removing the vacuum motor so that you can check the casing, follow this link.

If the dust bin is empty, the vacuum is not blocked, and the vacuum seal is intact, but the vacuum is still not picking up debris, then the vacuum motor may not be working. If the vacuum motor is not working, then you will not be able to hear the vacuum running. For a guide to replacing the vacuum motor, follow this link.

The Deebot has power and is turned on, but the brushes on the bottom do not spin.

Hair and other debris can get tangled in the Deebot’s brushes, preventing them from spinning. Remove each brush to check that nothing is jamming them. If hair or debris is found, remove it using scissors, a brush, or other tools as necessary.

If the brushes do not have debris jamming them, check that the brush motors are working. Flip the Deebot over while it is running and check to see if both brush motors are running. If one or more of the brushes is not spinning the brush motors may need to be replaced or connections need to be checked.