My unit moves, but it's not pumping water through the top.

BWT Pool Robots know when something is wrong or when the filters are full by how hard the motor has to run to move the propellor to create suction.  If the filters are very dirty and the robot has to work extra hard to create it's suction because of this, it might shut down.  If your robot does not seem to be pumping water, check the following:

1. Check to see if the filters are extra dirty.  One way to check to see if it is the filters rather than the robot, remove the filters from the robot and run it without them.  If the robot runs fine, it might be time to do a thorough cleaning of the filters or replace the filter baskets with new ones.  Need help finding where to purchase parts?  Check out our article,
   Where can I find a service center for repair or parts?
2. If your filter baskets are clean but the robot still does not seem to be pumping water, it could be because the propellor is either broken or seized due to hair, string, or leaves.  
   1. Remove the robot from the pool and disconnect from power. Inspect the propellor for accumulation of hair, string, or leaves that can block propellor from turning.                               NOTE: When removing the cover for the propellor, make sure to use a manual flat tip screwdriver.  Do not use power tools for this operation.
3. If you have checked all of the above and everything seems okay, but the robot still does not pump water, it is time to send it to a service center.  For help in finding service centers, refer to our article Where can I find a service center for repair or parts?