1. Inoperative foot valve.
2. Inoperative check valve.
3. Inoperative solenoid valve.
4. Pump cavitation.
5. Plumbing air leaks.
6. Lift too high.
7. Pump seal leaking.
1. Control power not available.
2. Motor thermal overload condition.
3. Pump failed and seized.
4. Motor failure.
1. Loose pump plumbing fittings.
2. Worn pump shaft seal.
3. Pump pressure relief valve failure.
4. Fuel leak elsewhere running towards pump area.
5. Excessive head from overhead storage tank.
6. Worn pump O-rings.
Pump
Requires
Frequent Re-
Priming
Motor Does
Not Turn Or
Turns
Intermittently
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