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Troubleshooting
This Troubleshooting guide provides basic diagnostic assistance.
DANGER! DO NOT open or attempt to repair the motor on your pump. Return it to the place of
purchase for service. Opening the motor case will compromise the integrity of the Explosion Proof
construction and void any existing warranty, approvals, and certifications (i.e.: ATEX, UL listing, CE, etc.).
DANGER! Disconnect all power prior to performing any service or maintenance. Failure to disconnect the
power may cause electrical shock, or unexpected starting of the motor, resulting in injury or death.
Symptom
Pump won't prime.
Low capacity.
Pump runs slowly.
Motor stalls / fuse blows.
Bold text indicates repairs that are not serviceable by the owner; pump must be returned to the point of purchase for repairs.
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Cause
Suction line problem.
Vanes sticking.
Excessive rotor, vane, rotor cover,
or housing wear.
Inlet / Outlet blocked.
Vapor lock.
Power connections reversed.
Excessive dirt in screen.
Suction line problem.
Excessive rotor, vane, rotor cover,
or housing wear.
Hose or nozzle damage.
Low fluid level.
Incorrect voltage.
Vanes sticking.
Wiring problem.
Motor problem.
Short in wiring.
Excess rotor or vane wear.
Pump rotor lock-up.
Debris in pump cavity.
Components swell from pumping
water.
Check suction line for leaks or restrictions; it may be
too small in diameter, too long, not air tight, or too low
vertically.
Check vanes for nicks, damage, obstructions, or
excess wear. Replace as necessary.
Inspect rotor, vanes, rotor cover, and housing for
excess wear; replace as necessary.
Check pump, hose, nozzle, and filter / strainer for
blockage.
Reduce vertical or horizontal distance from pump to
liquid.
Correct power connections.
Remove and clean screen.
Check suction line for leaks or restrictions; it may be
too small in diameter, too long, not air tight, or too low
vertically.
Inspect rotor, vanes, rotor cover, and housing for
excess wear; replace as necessary.
Replace hose or nozzle.
Refill tank.
Check incoming line voltage while pump is running.
Check vanes for nicks, damage, obstructions, or
excess wear. Replace as necessary.
Check for loose connections.
Return to place of purchase.
Inspect electrical cable for shorts and replace as
necessary.
Check vanes for nicks, damage, obstructions, or
excess wear. Replace as necessary.
Clean and inspect rotor and vanes.
Clean debris from pump cavity.
Let pump dry completely.
P10/20
Cure
Toll Free:1-877-761-2819
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