Pentair Hypro ARAG 520005, Operating Instructions And Parts Manual, Page: 16 / 20

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Troubleshooting
PROBLEM CAUSE REMEDY
The electric compressor will not
work. The pilot lights fail to come on. - No power reaches the
console.
- Check the fuse.
- Check the electrical connections of the
console.
The electric compressor will not
work. The pilot lights come on. - Electrical connection between
control unit and electric
compressor broken.
- Check the connections between the
control box and the electric compressor.
No foam comes out of the foam
nozzles. - The tank will not pressurize. - Close the tank cap properly.
- Check the tightness of the hoses
connecting the compressor with the cap.
Foam formation is not good. - Sponge dirty or hardened.
- Water-foaming agent mix old.
- Flow-rate adjustment wrong.
- Constrictions in the hoses.
- Clean or replace the sponge inside the
foam nozzle.
- Redo the water-foaming agent mix.
- Use the flow-rate regulator on the tank
cap to obtain a sufficiently dense foam.
- Check the hoses towards the foam nozzle.
Foam continues to be formed in the
foam nozzle, but not selected. - Solenoid valve jammed. - Disconnect the hoses going from the
compressor unit to the foam nozzle, then
blow with compressed air into the
connection of the solenoid valves towards
the compressor.
Air bleeds from the safety valve on
the cap. - Restriction in hoses.
- Solenoid valve jammed.
- Check the hoses toward the foam nozzle.
- Clean liquid from relevant solenoid valve
by blowing compressed air through the
connections leading to the foam nozzle.
- Break in the pneumo-
hydraulic circuit.
- Check that there are no cracks in the
hose inside the tank (from the filter to
the plug) and on the outer hoses.
- Clean the bottom filter of liquid.
- Check for any constrictions along
the hoses.
For problems not specified, call your dealer or the manufacturer.