I recently replaced the PVA brushes on my Water Tech Blue Diamond Pool Cleaner; the problem that I am having is that the robot won't sink... it stays floating, If I turn it on it will go on one direction, but when it changes to a different pattern it will turn backwards and will start floating... It was working fine prior changing the brushes.... I already inspected the impeller and it looks good to me, It is spinning fine.
The floating is kind of strange because it will float even when it is off.
Suggestions or Ideas are welcome