20
1. Pump not primed.
2. Li is too high.
3. Rotation direction incorrect.
4. Check valve installed backwards.
1. Air leak at inlet.
2. Defective solenoid valve or check valve.
3. Li too high.
4. Pump worn.
5. Inoperative foot valve.
6. Piping improperly installed.
7. Fuel strainer plugged.
1. Dirt or grit in fuel.
2. Pipe strain on pump causing bind.
3. Worn pump/motor coupler.
4. Pump has been run dry or with insucient fuel.
1. Leak at inlet.
2. End of inlet not deep enough.
3. Air or gas in fuel.
4. Supply exhausted.
5. Vaporization of fuel at inlet.
6. Air or gas in inlet line.
7. Sand or abrasives in fuel.
1. Air in plumbing lines.
2. Liquid heavy or too viscous.
3. Bent pump sha, binding rotating element.
4. Misalignment of pump/motor coupler.
6 TROUBLESHOOTING
no fuel
DelIvereD
InSuffICIent fuel
DelIvereD
rapID pump
wear
pump DelIverS
for SHort perIoD
anD QuItS
pump reQuIreS
too muCH
power
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