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0901154 Rev: A (04/10)
TROUBLESHOOTING
PROBLEM
SOLUTION
(1)
Unit will not operate.
Check for proper air pressure (60 PSI or more into
unit). 60 PSI on Air Gauge.
Check Air Regulator Filter for obstruction such as
water, oil, or debris.
Check for plugged strainer and replace Air
Regulator Filter Assembly, if necessary.
(2)
Unit will not make foam.
Make sure the correct foaming chemicals and
concentrations are being used.
Checkvalve is installed backwards.
Packing is contaminated or degraded. See item #8
for details on how to service the packing.
(3)
Wet Foam-Dry Foam Valve is opened too far
pump will not cycle properly due to lack of air
pressure.
If this occurs, close valve and follow the instruction
in Steps 5—7 under ―Operation‖ (page 3).
(4)
Air passes through the pump without cycling.
Repair or replace the pump.
(5)
Foam Solution backs up into the air filter.
Checkvalve needs replacing.
(6)
Pump cycles but no liquid is discharged.
Check to see if pump is primed.
Check footvalve/strainer orientation. Arrow must
point toward pump suction port.
Suction line leak.
Pump fittings loose or broken.
Suction line not submerged down into liquid.
If all of the above check out okay.
Repair or replace the pump.
