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11308652
Troubleshooting
Internal Air Valve-Operated Pumps Only
PROBLEM CAUSE SOLUTION
The pump will not cycle, or it cycles
once and stops.
The air valve is stuck or dirty.
Not enough air pressure supplied.
Disassemble and clean or repair the
air valve. See page 12.
Use filtered air.
Increase air pressure supply. Do not
exceed maximum input pressure.
Remote Solenoid-Operated Pumps Only
PROBLEM CAUSE SOLUTION
The pump will not prime or loses
prime.
The cycle rate is too low.
The check valves (20) are not
sealing.
Fluid manifold not mounted with OUT
port up.
Increase cycle rate to 60 cpm.
Inspect the check valves, and
replace them if worn or damaged.
See page 14.
Re-mount fluid manifold so OUT
port is up.
The pump leaks air or does not
operate.
Air is supplied to Port A and Port B
at the same time.
Solenoid exhaust is plugged.
Replace both diaphragms (30).
See page 13.
Check your installation. See
page 7.
Ensure that exhaust (G on page 7)
is free of obstructions.