Hayward Tristar 950 SV. Motor hums, breaker trips, impeller moves 3/4 turn only

[Simon Templar]

Hello folks,

Here are the facts:
Pump motor stopped running. Display states "Check system. Pump failed to start. Check motor and wet end for binding." Took apart wet end and saw impeller was stiff. Was able to hand free impeller and turned on the pump without re-attaching to the housing. The motor and impeller turned fine. Attached motor to housing and the motor does not run and trips breaker. Disconnected motor again from housing, and tested motor, and this time motor does not come on, just hums and then trips breaker and also the free spinning impeller is now binding badly and not turning. Am now able to turn impeller 3/4 turn only back and forth. Something is preventing it from spinning.

So is the problem with the impeller or is it with the motor. Please help. My pool is green and starting to stain the surface. What do you recommend as possible solutions? Pump is 7 years old.

Thank you.

 

[JamesW]

Remove the impeller and check the seal and try the motor with the impeller off.

 

[1poolman1]

Hello folks,

Here are the facts:
Pump motor stopped running. Display states "Check system. Pump failed to start. Check motor and wet end for binding." Took apart wet end and saw impeller was stiff. Was able to hand free impeller and turned on the pump without re-attaching to the housing. The motor and impeller turned fine. Attached motor to housing and the motor does not run and trips breaker. Disconnected motor again from housing, and tested motor, and this time motor does not come on, just hums and then trips breaker and also the free spinning impeller is now binding badly and not turning. Am now able to turn impeller 3/4 turn only back and forth. Something is preventing it from spinning.

So is the problem with the impeller or is it with the motor. Please help. My pool is green and starting to stain the surface. What do you recommend as possible solutions? Pump is 7 years old.

Thank you.

You were not turning the impeller, but using it to turn the motor. Also, look at the back of the motor to see if something is stuck in the fan.