Owner's Manual

5
OPERATION
1. The pump’s shaft seal depends on water for lubrication. Do not operate the pump unless it is
submerged in water; running it dry may damage the seal and void warranty.
2. If the pump overheats, an automatic-reset thermal protector cuts off the power and stops the motor
before it can be damaged. The motor will automatically restart when it cools. If the protector trips
repeatedly, unplug the pump, remove it from the sump, and check it for the cause of the difficulty. Low
voltage, long extension cords (which should not be used), clogged impeller, very low lift, a plugged or
frozen discharge pipe, etc., can all cause cycling and overheating.
3. This pump will not remove all the water in the sump. If you are running the pump manually and water
stops coming out of the discharge, the pump has probably run dry. Shut it off immediately and check
the water level.
TROUBLESHOOTING (CAUTION: SHUT OFF POWER TO THE PUMP)
PROBLEMS
POSSIBLE CAUSES / SOLUTIONS
Pump does not
run or it hums
● Line circuit breaker is off, or fuse is burned or loosed. Reset breaker or
replace fuse.
● Water level in sump has not reached turn-on level as indicated in
installation drawing.
● Pump cord is not making contact in receptacle. Re-insert plug.
● Float is stuck. It should operate freely in basin.
Pump runs but
does not deliver
water.
● Check valve is installed backwards. Flapper should open in direction of
water.
● Discharge shut-off valve (if used) may be closed.
● Impeller or volute openings are fully or partially clogged. Remove pump and
clean.
● Pump is air-locked. Start and stop several times by plugging and
unplugging cord. Check for clogged vent hole in pump case.
● Vertical pumping distance (“head”) is too high. Reduce distance or increase
diameter of discharge pipe/hose.
● Discharge pipe/hose could be frozen. Thaw pipe/hose or remove and
replace.
Pump runs and
pumps out sump,
but does not stop
● Float is stuck in up position. Be sure float operates freely in basin.
● Defective float switch. Replace with new float switch.
Pump runs but
delivers only a
small amount of
water.
● Pump is air-locked. Start and stop several times by plugging and
unplugging cord. Check for clogged vent hole in pump case.
● Vertical pumping distance (“head”) is too high. Reduce distance or increase
diameter of discharge pipe/hose.
● Impeller or volute openings are fully or partially clogged. Remove pump and
clean.
Fuse blows or
circuit breaker
trips when pump
starts.
● Pump impeller is partially clogged with debris, causing motor to run slow
and overload. Remove pump and clean.
● Motor stator may be defective. Call 1-844-251-7445.
● Fuse size or circuit breaker may be too small. 15-amp minimum is required.