10abb172_unicipal_well_and_pump_service__HOW_TO_CORRECT
[CAUSE OF TROUBLE] 7. Impeller or seal [HOW TO CHECK] Turn off the power, then use a screwdriver to try to turn the impeller or motor. [HOW TO CORRECT] 
If the impeller won't turn, remove housing and locate the source of binding.
Troubleshooting Submersible and Jet Pumps - Earl Pruitt's Residential - Municipal well and pump service
HOW TO CORRECT