Simer Pumps SIMER 3985 - Manual (Page 7)

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Troubleshooting 7
SYMPTOM PROBABLE CAUSE(S) CORRECTIVE ACTION
Pump won’t start or run. Pump is not plugged in. Make sure the pump is plugged into a proper outlet.
Blown fuse. Replace the fuse with a fuse of proper size.
Low line voltage. Check the size of the wiring on the circuit feeding the pump
and from the main switch on the property. If everything is OK,
contact your power company or hydro authority.
Defective motor. Replace the pump.
Defective float switch. Replace the float switch.
Clogged or jammed Impeller. If the impeller won’t turn, unplug the pump, remove the lower
pump body, and locate the source of the binding. Replace
the impeller if necessary.
Obstructed float. Move the pump in the sump or remove the obstruction.
Pump starts and stops Backflow of water from piping. Install or replace the check valve.
too often.
Faulty float switch. Replace the float switch.
Pump won’t shut off. Defective float switch. Replace the float switch.
Restricted discharge Unplug the pump, remove it from the sump, and clean the
(obstacle or ice in the piping). pump and piping.
Obstructed float. Move the pump in the sump or remove the obstruction.
Restricted intake screen. Unplug the pump, remove it from the sump, and clean the
intake screen and impeller.
Pump operates but Low line voltage. If the voltage is below 110 volts, check the size of the wiring
delivers little or no water. from the main switch on the property. If OK, contact your
power company or hydro authority.
Debris caught in the impeller. Remove the pump and clean out the impeller.
Worn or defective parts or Clean the impeller if it’s plugged; replace the impeller if
plugged impeller. necessary; otherwise replace the pump.
Check valve installed without Drill a 1/8" (3mm) dia. hole between the pump discharge and
vent hole the check valve (1-2" above the pump discharge and below
the waterline).
Restricted intake screen. Remove the pump and clean out the intake screen.
Check valve is installed either Be sure the check valve is installed correctly (the flow arrow
backward or upside down. should point away from the pump).
TROUBLESHOOTING CHART
Risk of electrical shock. Unplug the pump before touching it or servicing it.