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Printed in Taiwan
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Pump will not
start or run.
1. Circuit breaker is off or fuse is blown or
loose.
1. Reset circuit breaker or replace
fuse. If problem continues, contact
a professional electrician or
plumber.
2. Water in sump basin is not high enough
to cause the switch to turn on.
2. Water will turn on when it reaches
the proper level for the pump.
3. Pump is not plugged in or is connected
to a wall switch that has been turned
off.
3. Plug pump securely into GFCI
outlet that cannot be turned off by
a wall switch.
4. Float cannot move freely.
4. Remove any obstructions around
float.
Pump runs, but
does not deliver
water.
1. Make sure check valve is not installed
backwards.
1. Arrow on valve should point away
from pump.
2. Shut-off valve (if used) may be closed. 2. Open shut-off valve.
3. Impeller or pump inlet is clogged.
3. Remove pump from basin and
clean impeller or pump inlet.
4. Pump is air-locked.
4. Clean out vent hole in discharge
pipe.
5. Vertical pumping distance is too high.
5. Reduce the vertical distance to
correspond with the performance
chart in the instructions.
Pump runs
continuously.
1. Float is stuck in the ‘on’ position.
1. Make sure the float can move
freely.
2. Float switch is defective.
2. Replace float switch.
Pump runs, but
delivers little
water.
1. Pump is air-locked.
1. Clean out vent hole in discharge
pipe.
2. Vertical pumping distance is too high.
2. Reduce the vertical distance to
correspond with the performance
chart in the instructions.
3. Impeller or pump inlet is clogged.
3. Remove pump from basin and
clean impeller or pump inlet.
Fuse blows or
circuit breaker
trips when pump
starts.
1. Impeller or pump inlet is clogged.
1. Remove pump from basin and
clean impeller or pump inlet.
2. Fuse size or circuit breaker may be too
small.
2. Electrical circuit capacity must be
15 amps or higher.
RISK OF ELECTRIC SHOCK.
Always disconnect power source before attempting to install, service, or maintain the pump. Never
handle a pump with wet hands or when standing on wet or damp surface or in water. Fatal electrical
shock could occur.
DANGER
