Why does my Pentair Booster LA01N sound as if it is spraying water internally ?

Need more info. Check power and all switches. Is it connected to any automation?

Remove the rear motor cover, you will need pliers and a 7/16 open end wrench. The opposite end of the impeller has a shaft that has to be secured by the wrench. The shaft has a notch on each side, it could be behind the two small springs that hold the spinning connection. There is a bigger shaft version that needs just a small end cap taken off and that will expose the shaft to be held and that is a bigger wrench. Once the shaft is secured, you may need pliers to turn off the impeller. Turn counter clockwise. Remember to be careful, it's plastic and well used. Don't forget the seals to put it back together.

Hi,
Check the pump for an obstruction... the bearing that they are not seized up and the motor that it turns freely...other then that the motor is no good...

heatman101

You DO need a booster pump to power these automatic pool cleaners. It will not work without one.

could have blown a fuse on the circuit board, air lock in pipework or pump may have failed.
Adam
Canadian Spa Company

YOUR BEST BET IS TO COMPARE MOTOR REPLACEMENT TO AN ENTIRE PUMP REPLACEMENT
MORE THAT LIKELY ITS PROBABLY NOT A GREAT INVESTMENT TO JUST DO A MOTOR ON A BOOSTER PUMP
YOUR MOTOR IS NOISE IS COMING FROM BEARINGS INSIDE THAT ARE GETTING WORSE AND WORSE
NOW A DAYS I STRONGLY DON'T RECOMMEND EVEN TRYING TO REPLACE JUST BEARINGS THEY NEVER LAST LONG AND ITS ALMOST AS COSTLY
HOPE THIS HELPS--CHARLIE -POOL PROS

First things first. if the drain plug is not in the pump you would see water shooting out of it. Since you said its your first time i must ask if you have the main filter pump on and the booster pump on at the same time, because this is the only way that it will work. Next follow the hose coming out of the top of the booster pump until it goes into the ground, and make sure all valves are open, and then do the same with the hose coming out of the front. If water is coming out of all of the other returns, and just not that one it is probably a valve, but if you have no water going back to any returns, then you have a bigger problem.