Eco GA Series, Installation, Operation & Maintenance Manual, Page: 16 / 59

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For additional information or to locate the Pulsafeeder Representative in your area,
you can log onto
www.pulsa.com and
select “Find a Rep or Distributor”. If
additional assistance is needed, you can call Pulsafeeder at 585-292-8000.
6. TROUBLESHOOTING
DIFFICULTY PROBABLE CAUSE REMEDY
No liquid
delivery
Pump not primed
Suction and/or discharge valve closed
Wrong direction or rotation
Suction plugged
Air leak in suction
Suction lift too high
Motor incorrectly wired Prime pump
Open valves
Reverse rotation
Eliminate plug
Locate and repair leak
Do not exceed vapor pressure
Check wiring diagram
Low liquid
delivery
Discharge pressure higher than expected
Air leak in suction
Rotational speed incorrect
Pump worn or damaged internal parts Reduce pressure
Locate and repair leak
Check speed and wiring
Inspect and repair as required
Pump
gradually
loses prime
Air leak in suction
Suction lift too high
Air or gas in liquid
Pump worn or damaged Locate and repair leak
Increase suction pressure
Eliminate air or gas
Install (or clean) strainer in inlet pipe
Pump noisy
Pump cavitating
Pump worn or damaged
Air or gas in liquid
Foreign particles in liquid Increase suction pressure to provide
sufficient NPSH
Inspect and repair as required
Eliminate air or gas
Install (or clean) strainer in inlet pipe
Motor runs
hot or
overloads
It is normal for motors to feel hot even when
not overloading
Discharge pressure too high
Liquid viscosity higher than expected
Rotational speed too high
Binding internal pump parts
Motor wired incorrectly Check motor amp draw to be sure
Lower pressure, check pressure relief
valve setting and for defective discharge
pressure gauge
Thin liquid or install larger motor
Reduce speed
Inspect and correct condition
Check wiring diagram
Seal leaks
Operated pump dry (starved suction, dry prime)
Solids in product
Material incompatibility with product
Viscosity Open valves and prime pump
Add strainer in suction piping (100 mesh)
Consult Factory
Consult Factory