13
TROUBLESHOOTING CHECKLIST
The following steps are for service and cleaning of the pump;
1.
Pump does NOT run or hums
a.
Tripped breaker, blown or loose fuse or other interruption of power.
b.
Water level too low for float switch to operate
c.
Float may be stuck – it should operate freely in basin.
d.
Float tether too short. Minimum tether length is 76 mm [3”].
e.
Power cord not making contact at pump. Tighten locking nut on pump.
f.
Power cord not making contact in wall receptacle.
g.
Thermal protector switch opened. Allow pump to cool.
h.
Return for service.
2.
Pump runs or hums but does NOT pump or delivers insufficient capacity
a.
Pump NOT properly sized for application.
b.
Incorrect voltage.
c.
Check valve stuck or installed backwards.
d.
Discharge restricted.
e.
Shut off valve closed.
f.
Impeller jammed or inlet screen plugged with debris.
g.
Pump may be air-locked. Start and stop pump several times.
h.
Return for service.
3.
Pump will not turn off
a.
Float switch stuck in the up position. Make sure it is free in basin.
b.
Tether length too long. Maximum float tether length is 127 mm [5”].
c.
Excessive inflow or pump NOT properly sized for application.
d.
Return for service.
4.
Fuse blows or circuit breaker trips when pump starts
a.
Fuse size or circuit breaker may be too small, need 15 amps.
b.
Impeller jammed or rubbing on debris.
c.
Return for service.
5.
Pump cycles too frequent
a.
Check valve NOT installed or leaking.
b.
Float tether is too short. Minimum tether length is 76 mm [3”].
c.
Return for service.
