TROUBLESHOOTING GUIDE CHECKLIST
Do not disassemble the motor housing. This motor has NO repairable internal parts, and disassembly
may cause an oil leak or dangerous electrical wiring issues. DO NOT lift up the pump by power cord.
Problem
Possible Cause
Corrective Action
Pump does not start
or run
1. Blown fuse
2. Tripped breaker
3. Plug disconnected
4. Corroded plug
5. Thermal overload
6. Clogged impeller
7. Motor failed
8. Float failed
9. Water level too low
10. Tangled switch
Replace fuse
Reset breaker
Secure plug
Clean plug prongs
Unplug for 30 minutes, then plug in
Remove clog
Replace pump
Replace switch
Pump will not turn on unless water level
is over the pump cover and the float
switch turns upside down
Reposition the pump and make sure
switch moves freely
Pump operates but
pumps little or no
water
1. Debris caught in impeller or pipe
2. Check valve stuck or installed
backward
3. Anti-airlock hole blocked
4. Impeller loose on shaft
5. Impeller broken
Clean out debris
Inspect check valve and make sure it’s
properly installed
Remove the blockage
Reassemble impeller
Replace impeller
Pump starts and
stops too often
1. Back-flow of water from piping,
check valve leaking
2. Float switch failed
Pump will not shut off
1. Defective float switch
2. Float obstructed
1. Replace switch
2. Remove obstruction
6
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1.
2.
3.
4.
5.
1. Replace check valve
2. Replace switch
