Instructions / Assembly

8
Troubleshooting
WARNING: B
efore servicing a pump, always shut off the
main pow
er breaker and then unplug the pump. Under
floode
d conditions, make sure you are not standing in water
and that you
are wearing insulated protective sole shoes.
Contac
t your local electric company or a qualified licensed
electrician for dis
connecting electrical service prior to pump
removal.
CAUTION: Call an el
ectrician when in doubt. The pump
should b
e connected to a separate 15 A circuit breaker or
15 A fuse block.
Note that plugging into existing outlets may
c
ause low voltage at the motor. This could cause blown
fuses, tripping
of motor overload or a burned out motor.
Problem Proba
ble Causes and Solutions
The pump does
not run and makes a humming
sound.
□ The line circuit breaker is off, or the fuse is blown or loose.
□ The water level in the basin has not reached turn-on level as indicated in
the Installation Requirements drawing.
□ The pump cord is not making contact in the receptacle.
□ The float is stuck. It should operate freely in the basin.
□ If all of the above are OK, then the motor could be malfunctioning.
The pump runs but does no
t deliver water. □ Check if the check valve is installed backwards. The arrow on the check
valve should point in the direction of flow.
□ The gate valve (if used) may be closed.
□ The impeller or volute openings are fully or partially clogged. Remove the
pump and clean.
□ The pump is air-locked. Start and stop several times by plugging and
unplugging the cord. Check for clogged vent hole in the pump case or
discharge pipe and/or no vent hole in the pump case or discharge pipe.
□ The inlet holes in the pump base are clogged. Remove the pump and clean
the openings.
□ The vertical pumping distance is too high. Reduce the distance or change
the discharge fittings of the pump.
The pump runs and pumps out
sump, but does not
stop.
□ The float is stuck in the up position. Be sure the float operates freely in the
basin.
□ The float switch is defective. Replace the float switch.
The pump runs but only deliver
s a small amount of
water.
□ The pump is air-locked. Start and stop several times by plugging in and
unplugging the cord. Check for a clogged vent hole in the pump case.
□ The vertical pumping distance is too high. Reduce the distance or change
the discharge fitting of the pump.
□ Inlet holes in the pump base are clogged. Remove the pump and clean the
strainer and openings.
□ The impeller or volute openings are fully or partially clogged. Remove the
pump and clean.
The fuse blo
ws or circuit breaker trips when the
pump starts.
□ The pump impeller is partially clogged, causing the motor to run slowly and
overload. Remove the pump and clean.
□ The motor stator may be defective.
□ The fuse size or circuit breaker may be too small (must be 15 A).
□ The impeller or volute openings are fully or partially clogged. Remove the
pump and clean.
The motor runs for a short time and then s
tops. □ The inlet holes in the pump base are clogged. Remove the pump and clean
the openings.
□ The pump impeller is partially clogged, causing the motor to run slowly and
overload. Remove the pump and clean.
□ The motor stator may be defective.
□ The impeller or volute openings are fully or partially clogged. Remove the
pump and clean. Also clean the strainer if one is installed.