Table of Contents
Advertisement
TROUBLE
1. Pump does not start
2. No liquid delivered
3. Not enough liquid
4. Not enough pressure
5. Pump works for a while
and quits
24
TROUBLESHOOTING
PROBABLE CAUSE
A. Electrical circuit open or not
completed
B. Improper lateral adjustment.
Impeller on bottom.
C. Low voltage supplied to
electric driver
D. Defective motor
A. Discharge valve closed
B. Speed is too low
C. Damaged bowl assembly;
Broken or disconnected shaft
D. Driver with reduced voltage, or
Reduced current starting does
not come up to speed
E. Barrel/Discharge head not
properly vented.
F. Suction valve closed.
A. Same as items 2-A thru 2-E
B. Cavitation
C. Impellers adjusted too high
D. Air or gas in the water
E. Excessive pump wear
F. Suction valve partially open
See (3.) Not enough liquid.
A. Excessive horsepower required.
B. Pumping higher viscosity or
specific gravity liquid than
designed for.
C. Mechanical failure of
critical parts
D. Suction strainer clogged
E. Misalignment
F. Same as 2E, 2F and 3F
REMEDY
Check circuit and correct.
Reset impeller adjustment,
See pages 15 or 16.
Check whether driver wiring is
correct and receiving full voltage.
Consult factory.
Be sure the discharge valve is in
full open position.
Check if driver is directly across
the line and receiving full voltage.
Pull pump and repair all
damaged components.
Check RPM, voltage, and amps.
Open vent.
Confirm valve position.
Same as items 2-A thru 2-E.
Insufficient NPSH available.
Consider lowering the bowl
assembly by adding column.
See pages 15 or 16.
If successive starts and stops
do not remedy, lower pump if
possible, or close discharge
valve to maintain well pumping
level at a lower GPM.
Pull pump and repair as required.
Confirm valve position.
See (3.) Not enough liquid.
Use larger driver. Consult factory.
Test liquid for viscosity and
specific gravity.
Check bearings and impellers for
damage. Any irregularities in
these parts will cause a drag
on the shaft.
Pull pump and clean the strainer.
Realign pump and driver.
Same as 2E, 2F and 3F
Advertisement
Table of Contents
