6.7
Pinto BT-POM 1212 - Revision 5
Section 6
Foam Marker Prob lems - RHS Marker
PROBABLE CAUSE
1 Air On/Off solenoid valve doesn't operate.
2 Pressure regulator incorrectly adjusted.
3 Pressure regulator damaged.
4 Air discharge plugged.
1 Concentrate weak or water too hard.
2 Liquid pressure too high.
3 Air supply not operating or plugged.
1 Foam quality poor or weak air supply.
1 Left-Right hoses hooked up backwards.
1 No power to valve.
2 Valve failure.
1 Valve Failure
PROBLEM
D Discharges almost all water -
Air Flow Restricted
E Discharge foamy but very watery
F Not enough foam
G Foam goes to wrong side
H Foam won't switch sides
I Foam comes out both sides at the same time
REMEDY
1 Check for 12V to solenoid. If not, check for
electrical issues. If so, replace air ON/Off solenoid
valve.
2 Set pressure regulator to 28 psi.
3 Replace pressure regulator.
4 Inspect air check valve located near solenoid
discharge for proper operation.
1 Strengthen concentrate mixture or add water
conditioner. If this doesn’t work, try a different water
supply.
2 Reduce liquid pressure to under 40 psi.
3 See air pump remedies above. Service air cleaner.
1 Measure the output by catching in a bucket. If
output exceeds 20 litres/min, the marker is working
at full capacity. If not, make sure foam quality is
good as described above. Also, low output can
be related to poor air supply performance. See
description above.
1 Reverse hoses on Directo-Valve.
1 Check electrical connection to the valve
2 Replace valve.
1 Replace valve.
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