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TROUBLESHOOTING CHART
Symptom
Pump will not start or run
Pump will not prime or retain prime after
operating
Flow rate is too low
Seal leaks
Thermal Protector Tripping
All manuals and user guides at all-guides.com
Possible Cause(s)
1. Blown fuse
2. Low line voltage
3. Worn brushes
4. Impeller blocked
5. Defective motor
1. Air leak in suction line
2. Impeller blocked
3. Worn seal
4. Suction lift too high
5. Hose kinked or looped
6. Fittings not tight
7. Suction hose out of water
8. Clogged inlet
1. Piping or hose is fouled or damaged
2. Low line voltage
1. Worn seal
2. Backhead damaged or cracked
3. Pump head loose on motor
1. Damage or misalignment causing rotating
parts to bind
2. High surrounding temperature
3. Low line voltage
4. Motor housing air-vents blocked
5
Corrective Action
1. If blown, replace with proper sized fuse or reset
breaker
2. Contact an electrician
3. Replace brushes
4. Remove blockage
5. Replace pump
1. Repair or replace suction line (use plumbers
tape to install garden hose adpater fittings and
priming plug onto pump body)
2. Remove blockage
3. Replace seal
4. Lower pump
5. Straighten hose
6. Tighten fittings
7. Submerge suction hose end
8. Clean inlet
1. Clean or replace
2. Contact an electrician
1. Replace seal
2. Replace backhead
3. Insure proper assembly and no obstruction,
tighten bolts
1. Take to motor repair shop or locate and repair
mechanical binding
2. Provide a shaded, well-ventilated area for pump
3. Contact an electrician
4. Remove air-vent blockage
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