Product Manual

Troubleshooting 8
Troubleshooting Chart
Symptom Probable Cause(s) Corrective Action
Pump won’t start or run.
Blown fuse. If blown, replace with a fuse of proper size.
Low line voltage.
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.
Defective motor. Replace the pump.
Defective float switch. Replace the float switch.
Impeller.
If the impeller won’t turn, remove the lower pump body and locate the source of
the binding.
Float is obstructed. Remove the obstruction.
Pump starts and stops too often.
Backflow of water from piping. Install or replace the check valve.
Faulty float switch. Replace the float switch.
Pump won’t shut off.
Defective float switch. Replace the float switch.
Restricted discharge (obstacle in piping). Remove the pump and clean the pump and piping.
Float obstructed. Remove the obstruction.
Pump operates but delivers little
or no water.
Low line voltage.
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.
Something is caught in impeller. Clean out the impeller.
Anti-airlock hole is plugged. Turn off the pump, clean out the anti-airlock hole, and restart pump.