4
SYMPTOM
PROBABLE CAUSE(S)
CORRECTIVE ACTION
Pump won’t start
Blown fuse.
If blown, replace with a fuse of proper size.
or run.
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
Backflow of water from
Install or replace the check valve.
too often.
piping.
Faulty float switch.
Replace the float switch.
Pump won’t shut off.
Defective float switch.
Replace the float switch.
Restricted discharge
Remove the pump and clean the pump and piping.
(obstacle in piping).
Float obstructed.
Remove the obstruction.
Pump operates but
Low line voltage.
If the voltage is under the recommended minimum, check the size
delivers little or no
of the wiring from the main switch on the property. If OK, contact
water.
power company or hydro authority.
Something is caught in
Clean out the impeller.
impeller.
Anti-airlock hole is plugged.
Turn off the pump, clean out the anti-airlock hole, and restart pump.
TROUBLESHOOTING CHART
8.
With the switch guard in place, set the switch on the
motor housing with the switch arm pointed toward the dis-
charge side of the pump and install and tighten the four
screws which secure the switch to the pump.
9.
Holding the float out sideways, hook the float rod on to
the switch arm and swing the float rod down.
10. Insert the float rod in the hole in the tether strap.
11. Reinstall the pump in the sump, check all piping connec-
tions, and reconnect the power. Run the pump through
one complete operating cycle to check for proper opera-
tion. Failure to make this operational check may lead to
flooding and will void the warranty.
AIRLOCKS
When a pump airlocks, it runs but does not move any water.
An airlock will cause the pump to overheat and fail. These
pumps have a built in anti-airlock hole. See the exploded
view on the repair parts page for the location of the hole.
Leakage from the anti-airlock hole is normal.
If you suspect an airlock, unplug the pump, clean out the
anti-airlock hole with a paper clip or a piece of wire, and
restart the pump.
5
88
7 100
8
Do not dist
u
r
b
!
Gro
u
nd
W
ire –
Do not dist
u
r
b
!
Figure 1:
Connect switch as shown. Do not disturb the spade
terminals on the switch. The gasket has been omitted for
clarity.
Ground wire -
Do not disturb!
Do not disturb!