Troubleshooting Checklist for Vertical Turbine Well Pumps
Cause of Trouble
Pump fails to
Check tube tension nut for tightness; check for
bent shaft and proper anchoring; check oil.
Check, particularly on out-of-service pumps.
Where necessary, flush with acid, chlorine,
Fuses burned out
Check voltages at each phase of motor
Check for sand; raise or lower impeller;
backwash. Pull pump if necessary. Also check
impeller adjustment; raise impeller to allow
shaft to stretch for hydraulic thrust.
Disconnect from pump and check starting.
Power not available Check circuit breaker, fuse, and starter.
Trash in casing
Check. If necessary, pull pump and clean.
Check; pull pump; repair well.
Pump does not
Pump not primed
Check for proper pump submergence. Vent well
to atmosphere to eliminate vacuum at pump
Discharge head too
Check for closed discharge valves or stuck