User Guide

Risk of electric shock. Always disconnect the pump from the power source before repairs or inspections.
Symptom
Possible Cause(s)
Corrective Action
Pump will not Run
1. Poor Electrical Connection, blown
fuse, tripped breaker or other
interruppton of power. Improper
Power supply.
2. Motor or switch inoperative (go
to manual operation)
3. Float movement Restricted
4. Switch will not activate pump or
is defective.
5. Defective motor
1. Check all electrical connections
for security. Have electrician
measure current in motor leads.
If current is within 20% of locked
rotor amps, impeller is probably
locked. If current is 0, overload
may be tripped. Remove power,
allow pump to cool, then re-
check current.
2. (go to manual operation)
3. Reposition pump or clean basin
as required to provide adequate
clearance for float.
4. Disconnect level control. Set
ohmmeter for a low range, such
as 100 ohms full scale and
connect to level control leads.
Actuate level control manually
and check to see that ohmmeter
shows zero ohms for closed
switch and full scale for open
switch (Float Switch)
5. Check winding Insulation
(Megger Test) and winding
resistance. If check is outside of
range, dry and re-check. If still
defective replace per service
instructions.
6. Make sure liquid level is above
pump
7. Re-check all sizing calculations
to determine the proper pump
size.
8. Check discharge line for
restrictions, including ice if line
passes through cold areas.
9. Remove and examine check
valve for proper installation and
freedom of operation.
10. Open Valve
11. Check Impeller for freedom of
operation, security, and
condition. Clean impeller cavity
and inlet of any obstruction.
12. Loosen union slightly to allow
trapped air to escape. Verify
that turn-off level of switch is
set so that the suction is always
flooded. Clean vent hole.
Pump will not turn off
Pump Hums but doesn’t run
Pump delvers insufficient
capacity
Pump cycles too frequently
or runs periodically when
fixtures are not in use
3. Float movement Restricted
4. Switch will not activate pump or
is defective.
7. Excessive inflow or pump not
properly sized for application
12. Pump may be airlocked causing
pump not to flow
17. H-O-A switch on panel is in
“HAND” position
1. Incorrect low Voltage
11. Impeller jammed or loose on
shaft or inlet plugged
1. Incorrect low Voltage
7. Excessive inflow or pump not
properly sized for application
8. Discharge restricted
9. Check valve partially closed or
installed backwards.
10. Shut off valve closed
11. Impeller jammed or loose on
shaft, or inlet plugged
12. Pump may be air locked
causing pump not to flow
13. Piping fixtures leaking or
discharge before the nozzle
9. Check valve partially closed or
installed backwards
14. Fixtures are leaking
18. Ground water entering basin
Pump delivers insufficient
capacity