15
Maintenance and Service
WARNING : Pump warranty becomes void if you remove the motor housing, unscrew the
impeller, or otherwise remove the impeller seal.
If the pump does not operate properly, follow the steps shown under “Troubleshooting
Checklist” on page14.
For any work on the pump or switch, always unplug the power cord(s). Do not just
turn off the circuit breaker or unscrew the fuse.
Cleaning the Float
If the pump becomes inoperative because of trash accumulation on the float, remove the
pump from the sump and clean the float switch.
Wipe all water and dirt from the pump and float switch.
Be sure the float switch operates freely after cleaning.
Cleaning Impeller and Volute Case
Remove the screws that hold the lower base to the housing.
CAUTION: Do not remove the motor housing or unscrew the impeller. Use a screwdriver
to pry the base from the housing. Pry in several places.
Be sure impeller turns freely after cleaning.
Clean out holes in the pump base and wash thoroughly before replacing.
Motor runs for
a short time,
then stops
• Inlet holes in pump base are clogged. Remove pump and clean
the openings.
• Pump impeller is partially clogged, causing motor to run slow
and overload. Remove pump and clean.
• Motor my be overheated due to water level being too low (pump
not submerged).
• Motor stator may be defective.
• Impeller or volute openings are fully or partially clogged.
Remove pump and clean.
Problem Possible Causes