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Troubleshooting
Internal Air Valve-Operated Pumps Only
PROBLEM
The pump will not cycle, or it cycles
once and stops.
Remote Solenoid-Operated Pumps Only
PROBLEM
The pump will not prime or loses prime.
The pump leaks air or does not operate.
10 819.6247
CAUSE
The air valve is stuck or dirty.
Not enough air pressure supplied.
CAUSE
The cycle rate is too low.
The check valves (20) are not sealing.
Fluid manifold not mounted with OUT
port up.
Air is supplied to Port A and Port B at
the same time.
Solenoid exhaust is plugged.
SOLUTION
Disassemble and clean or repair the air.
Use filtered air.
Increase air pressure supply. Do not ex-
ceed maximum input pressure.
SOLUTION
Increase cycle rate to 60 cpm.
Inspect the check valves, and replace
them if worn or damaged. See page 13.
Re-mount fluid manifold so OUT port is
up.
Replace both diaphragms (30).
See page 12.
Check your installation. See page 6.
Ensure that exhaust (G on page 6) is
free of obstructions.
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