Troubleshooting - VERDER HI-CLEAN VA-2H25 Repair Parts List Manual

Troubleshooting

Troubleshooting Troubleshooting
• Follow the Pressure Relief Procedure, page 9
before checking or servicing the equipment.
Problem
Problem Problem
Pump cycles at stall or
fails to hold pressure at
stall.
Pump will not cycle, or
cycles once and stops.
Reduced pump
performance
Air bubbles in fluid.
Leak in inlet or outlet
sanitary fitting.
Manifolds do not fit for
installation onto fluid
covers.
812.0063
,
Cause
Cause Cause
Worn checks or seating surfaces.
Air valve is stuck or dirty.
Check ball is severely worn and
wedged in seat or manifold.
Check valve ball is severely wedged
into seat due to overpressurization.
Clogged dispensing valve .
Leak detector has activated a shut-
down solenoid.
Clogged suction line.
Sticky or leaking check balls.
Ruptured diaphragm.
Restricted exhaust.
Loose suction line.
Ruptured diaphragm.
Loose inlet manifold, damaged seal
between manifold and fluid cover, or
damaged gaskets.
Loose sanitary clamp.
Damaged or worn gasket.
Misalignment of inlet/outlet fluid line
or pipe.
Use of incorrect air cover gaskets
results in misalignment.
• Check all possible problems and causes before
disassembly.
Solution
Solution Solution
Replace.
Disassemble and clean air valve.
Use filtered air.
Replace ball and seat.
Follow
Pressure Relief Procedure, page 9
Disassemble ball check assembly
and inspect for damage.
Follow
Pressure Relief Procedure, page 9
Clear valve.
Investigate failure and reset leak
detector.
Inspect; clear.
Clean or replace.
Replace. See standard or
overmolded diaphragm repair
procedure.
Remove restriction.
Tighten.
Replace. See standard or
overmolded diaphragm repair
procedure.
Tighten manifold clamps or replace
gaskets or seating surfaces.
Tighten clamp.
Replace gasket.
Use flexible fluid lines at pump inlet
and outlet.
Install correct air cover gaskets for
the type of diaphragms in use. See
Parts list for correct gasket.
Troubleshooting
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