1 : Press the blue push button to open the housing.
2 : Continue to hold the push button and turn the flap on the motor housing in the direction of the arrow.
3 and 4 : Check and clean the impeller, take the pump impeller and shaft out of the casing and clean them.
4 : Make sure the O-ring is in the correct position before reassembling the pump parts.
5 : Reverse the procedure to reassemble the pump and reinstall it in the pool.