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TROUBLESHOOTING
Problem
Possible Cause
Corrective Action
The pump does not start or run.
1. The fuse is blown.
2. The breaker is tripped.
3. The plug is disconnected.
4. The plug is corroded.
5. There is thermal overload.
6. The float switch failed.
7. The motor failed.
1. Replace the fuse.
2. Reset the breaker.
3. Secure the plug.
4. Clean the plug prongs.
5. Unplug for 30 minutes and
then plug in again.
6. Replace the float switch.
7. Replace the pump.
The pump operates but pumps
little or no water.
1. The screen is blocked.
2. Debris is caught in the impeller or
discharge.
3. The impeller is loose on the shaft
or the impeller is broken.
1. Clean the screen.
2. Remove the debris.
3. Reassemble the impeller or
replace the impeller.
The pump starts and stops too
often.
1. There is a backflow of water from
the piping or the check valve is
leaking.
2. The switch is tangled.
3. The float switch failed.
1. Install a check valve or
replace the check valve.
2. Reposition the pump and
make sure the switch moves
freely.
3. Replace the switch.
The pump will not shut off.
1. The switch is tangled.
2. The float switch is faulty.
3. The float is obstructed.
1. Reposition the pump and
make sure the switch moves
freely.
2. Replace the switch.
3. Remove the obstruction.
