1.
2.
3.
How to navigate this chart:
Identify symptom @ top left
Move to right and find highlighted cells that
identify possible causes below
Move down below listed causes and find
highlighted cells that identify remedies to the
bottom left
CAUSES
Breaker tripped, open switch or loose wire connctions
Improper electrical connections
Defective motor
Improper voltage connection
Poor motor ventilation
Improper running voltage at motor terminals
Pump is not primed
Plumbing suction leak
Plumbing discharge leak
Discharge or suction piping plugged, valve closed
W
ater level is more than 25 feet below injector (This applies to a
deep well application with a 25 foot tail pipe)
W
ater level below injector is deeper than anticipated
Injector nozzle plugged
Impeller ports plugged
Leaking check or foot valve
W
ater logged pressure tank
High friction loss between pump and pressure tank, partially closed discharge valve
Pressure switch cut-out setting too high
Suction line restriction, suction piping too small, partially closed suction valve
Deep well control valve open too much
W
ater level drops below suction inlet
Recharge pressure tank to 2 PSI below pressure
switch cut-in setting
Increase size or clean out discharge pipe between
pump and pressure tank
Lower pressure switch cut-out pressure as described
in"PRESSURE SWICH ADJUSTMENT" in this manual
Increase size or clean out suction piping to pump
Clear nozzle or impeller of clogging debris. See
"PUMP DISASSEMBLY" in manual
Convert a shallow well application into a deep well
arrangement. Lower the injector setting in a deep well
application
Consult pump performance table and select alternate
injector assembly or pump that will produce required
performance at well conditions
Replace faulty check or foot valve
Make sure motor vents are not blocked and/or
improve vent clearance around motor
Follow "PRIMING THE PUMP" proceedure as outlined
in this manual
Check all plumbing joints and connections for leaks
Make sure all valves are fully open and all piping is
free from obstructions
Have qualified elctrician check for low or high running
voltage at motor terminal. Electrician will need to
correct if necessary.
Excessive air in water
Check wiring, switches and breakers
Call your dealer
Make sure motor voltage setting and incoming voltage
match
Excessive cycling of pump
Loss of pressure with no water usage
Pump runs continuously
Gravelly noise from pump
SYMPT
OMS
CVJ TROUBLESHOOTING GUIDE
REMEDIES
Perform "CONTROL VALVE ADJUSTMENT" as
described in this manual
For shallow well applications lower suction inlet in
well. If this length becomes greater than 25 feet, you
will need to convert to a deep well system. For deep
well applications you will need to lower the injector in
the well.
Motor not running
Motor overheats
Pump does not deliver water or pressure
Low pressure from pump
Low flow from pump
