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For parts or assistance, call Simer Customer Service at 800-468-7867
Operation ∙ Troubleshooting 5
Symptom Possible Cause(s) Corrective Action
Pump won’t start
or run.
Pump is not plugged in. Check and see if pump is plugged into a proper outlet.
Blown fuse. If blown, replace with fuse of proper size.
Low line voltage
If voltage under recommended minimum, check size
of wiring from main switch on property. If OK, contact
power company or hydro authority.
Defective motor. Replace pump.
Defective float switch. Replace float switch.
Impeller
If impeller won’t turn, remove lower pump body and
locate source of binding.
Float obstructed Remove obstruction.
Pump starts and
stops too often.
Backflow of water from piping Install or replace check-valve.
Faulty float switch Replace float switch.
Pump won’t shut
off
Defective float switch Replace float switch.
Restricted discharge (obstacle
or ice in piping)
Remove pump and clean pump and piping.
Float obstructed Remove obstruction.
Restricted intake screen
Remove the pump and clean the intake screen and the
impeller.
Pump operates
but delivers little
or no water
Low line voltage
If voltage under recommended minimum, check size
of wiring from main switch on property. If OK, contact
power company or hydro authority.
Something caught in impeller Remove the pump and clean out the impeller.
Worn or defective parts or
plugged impeller
Clean impeller if plugged; otherwise replace pump.
Check valve installed without
vent hole.
Drill a 1/16” - 1/8” (1.6mm-3.2mm) dia. hole between
pump discharge & check valve (1-2” above where the
discharge pipe screws into the pump discharge and
below the waterline).
Restricted intake screen Remove the pump and clean out the intake screen.
Check valve is installed either
backward or upside down
Be sure check valve is installed correctly.
Operation
Risk of electric shock. Can shock, burn or
kill. Do not handle a pump or pump motor with wet
hands or when standing on wet or damp surface, or in
water.
1. Shaft seal depends on water for lubrication. Do not
operate pump unless it is submerged in water as seal
may be damaged if allowed to run dry.
2. Motor is equipped with automatic reset thermal
protector. If temperature in motor should rise, switch
will cut off all power before damage can be done
to motor. When motor has cooled, switch will reset
automatically and restart motor. If protector trips
repeatedly, pump should be removed and checked.
Low voltage, long extension cords, clogged impeller,
very low head or lift, or a plugged or frozen discharge
pipe, etc., could cause protector to trip.
3. Pump will not remove all water. If operating a pump
manually and suddenly no water comes out of the
discharge hose, shut off the unit immediately. The unit
has broken prime due to a very low water level.
Risk of electric shock. Can shock, burn or
kill. Before attempting to check why unit has stopped
operating, disconnect power from unit.
Troubleshooting
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