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TROUBLESHOOTING
TROUBLESHOOTING
The troubleshooting chart applies to problems which may arise during pump operation. The chart
assumes that the pump is correctly installed and is the correct size for the application.
Contact Tri-Clover if assistance is required.
Refer to the motor manufacturer’s operating and maintenance manual for motor troubleshooting
information.
PROBLEM
PROBABLE CAUSE
REMEDY
1. Motor and pump do
a. No power at power panel.
a. Ensure power is available
not run.
at power source.
2. Pump not discharging.
a. Motor connections
a. Check power leads to
incorrect/loose.
motor.
b. Obstruction in discharge
b. Remove obstruction.
piping.
c. Closed throttle or check
c. Ensure all valves are
valve.
open.
3. Pump is rotating in
a. Motor wired backwards.
a. Verify motor is wired
the wrong direction.
according to manufacturer’s
instructions.
4. Pump is not discharging
a. Motor wired incorrectly.
a. Verify motor is wired
at rated capacity.
according to manufacturer’s
instructions.
b. Bent impeller.
b. Remove cover and check
impeller against a known
straightedge.
c. Throttle or check valve
c. Ensure all valves are fully
partially closed.
open.
d. Obstruction in discharge
d. Ensure no obstruction in
piping.
discharge piping exists.
e. Pump cavitation.
e. See cavitation causes in
the INSTALLATION
section of these
instructions.
f.
Impeller clearance incorrect.
f.
Check impeller clearance.
g. Solid particles in pump.
g. Remove cover and check
for particles in the pump.
