Service • Troubleshooting • Repair Parts
6
Service
Risk of electric shock. Can shock, burn or
kill. Before removing pump from basin for service, always
disconnect electrical power to pump and control switch.
Risk of electric shock. Can shock, burn
or kill. Do not lift pump by power cord. See Cord
Lift Warning.
Submerge pump in a disinfectant solution (dilute chlorine
bleach) for at least one hour before disassembling pump.
The pump motor contains a special lubricating oil which
should be kept clean and free of water at all times.
Check operation by filling sump with water and
observing pump operation through one complete cycle.
Risk of flooding. Can cause personal injury
and/or property damage. Failure to make this operational
check may lead to flooding and premature failure.
NOTICE This unit is not designed for applications
involving salt water or brine! Use with salt water or brine
will void warranty.
Repair Parts
Risk of electric shock. Can shock, burn
or kill. Disconnect pump from electrical power before
replacing cord or switch. Do not remove impeller
housing (volute).
There are no consumer serviceable parts inside
the pump.
Description
Part Number
Power Cord: 10’, 115 V
21628B046
Tethered Float Switch
PW117-267-TSE
Impeller
26053B000
Troubleshooting
Risk of electrical shock, cuts, and possible unexpected starts. Can result in electrical shock or pinching
of hands or tools. If power to pump is on when thermal overload resets, pump may start without warning. Disconnect
power before servicing pump.
Pump fails to operate:
1. Check to be sure that power cord is securely plugged into outlet. Disconnect power to outlet before handling pump or
motor.
2. Check to be sure you have electrical power.
3. Check that liquid fluid level is high enough to activate switch or controller.
4. Check to be sure that 3/16” (4.7 mm) vent hole in discharge pipe is not plugged.
5. Check for blockage in pump inlet, impeller, check valve or discharge pipe.
6. Thermal overload may have tripped. Test start pump; if it starts and then stops immediately, disconnect from power source
for 30 minutes to allow motor to cool, then reconnect to power source. Check for cause of overheating/overloading.
7. Check the float switch operation for maximum possible clearance.
Pump fails to empty sump:
1. Be sure all valves in discharge valve are fully open.
2. Clean out discharge pipe and check valve.
3. Check for blockage in pump inlet or impeller.
4. Pump not sized properly. A higher capacity pump may be required.
5. Check the float switch operation for maximum possible clearance.
Pump will not shut off:
1. Check switch or controller automatic floats for proper operation, location and clearance. See installation instructions for
switch/controller.
2. If pump is completely inoperative or continues to malfunction, consult your local serviceman.
Summary of Contents for CLW750
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