Troubleshooting
Sudden Starts . If the power is on to the pump when thermal overload resets, the pump may start without
warning. If you are working on the pump, you may get an electrical shock or the impeller may catch fingers or tools.
Disconnect the power before servicing the pump.
Symptom
Probable Cause(s)
Blown fuse or circuit breaker tripped.
Low line voltage.
Defective motor.
Pump won't start or run.
Defective float switch.
Impeller.
Float is obstructed.
Backflow of water from piping.
Pump starts and stops
too often.
Faulty float switch.
Defective float switch.
Pump won't shut off.
Restricted discharge (obstacle in piping).
Float obstructed.
Low line voltage.
Pump operates but
delivers little or
Something is caught in impeller.
no water.
Vent hole is plugged.
For parts or assistance, call Simer Customer Service at 1-800-468-7867
Corrective Action
If blown, replace with a fuse of proper size. If tripped, reset circuit breaker.
If the voltage is under the recommended minimum, check the size of the wiring from the
main switch on the property. If OK, contact power company or hydro authority.
Replace the pump.
Replace the float switch.
If the impeller won't turn, remove the lower pump body and locate the source of
the binding.
Remove the obstruction.
Install or replace the check-valve.
Replace the float switch.
Replace the float switch.
Remove the pump and clean the pump and piping.
Remove the obstruction.
If the voltage is under the recommended minimum, check the size of the wiring from the
main switch on the property. If OK, contact power company or hydro authority.
Clean out the impeller.
Clean out the vent hole.
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