
e1nmdlCsm-rev0512
WWW.VERSAMATIC.COM 8
Troubleshooting Guide
Symptom: Potential Cause(s): Recommendation(s):
Pump Cycles Once
supply pressure).
Air valve or intermediate gaskets installed incorrectly.
Bent or missing actuator plunger. Remove pilot valve and inspect actuator plungers.
Pump Will Not Operate
Check air distribution system.
Check for inadvertently closed discharge line valves. Clean discharge manifolds/piping.
supply pressure).
Pump Cycles and Will
Not Prime or No Flow
Cavitation on suction side. Check suction condition (move pump closer to product).
Check valve obstructed. Valve ball(s) not seating
properly or sticking.
Clean out around valve ball cage and valve seat area. Replace valve ball or valve seat if damaged.
Use heavier valve ball material.
Valve ball(s) missing (pushed into chamber or
manifold).
Resistance Guide for compatibility.
Valve ball(s)/seat(s) damaged or attacked by product. Check Chemical Resistance Guide for compatibility.
Suction line is blocked.
Suction side air leakage or air in product.
Pump Cycles Running
Flow Unsatisfactory
Over lubrication.
Icing.
Clogged manifolds.
supply pressure).
Cavitation on suction side. Check suction (move pump closer to product).
Install a larger air line and connection.
Suction side air leakage or air in product.
Suction line is blocked.
Check valve obstructed.
Product Leaking
Through Exhaust
Replace diaphragms, check for damage and ensure diaphragm plates are tight.
Failure
Cavitation.
Install Back pressure device (Tech bulletin 41r). Add accumulation tank or pulsation dampener.
and lubrication.
Unbalanced Cycling
Suction side air leakage or air in product.
Check valve obstructed.
For
additional
troubleshooting
tips
contact
After
Sales
Support
at
[email protected] or
419-524-8388
2: INSTAL & OP