46
Installation and Operation Manual
Foam Flowmeter sensor
Inspect wiring and connection
circuit open.
to foam flowmeter.
Foam Flowmeter
Check to ensure that the
positioned incorrect.
flowmeter is properly inserted
into the foam injection line.
The arrow on the flowmeter
should point in the direction of
injected flow.
Foam Flowmeter
Replace flowmeter.
not functioning.
Pump runs full speed whenever
Poor ground to valve driver box.
Make sure screws are tight and a
the circuit breaker switch is
ON
.
good ground is maintained.
No characters are displayed on the
The main power switch is not
ON
.
Turn on the main power switch
digital display.
on the valve driver box.
Cables not correctly connected.
Inspect and secure connections.
Check for bent pins in control
cable connections.
Defective control cable or bent pins.
Replace control cable.
Digital display has been damaged.
Replace the digital display.
Poor ground on system or controller.
Make sure screws are tight and a
good ground is maintained.
System is powered up and the
No water is flowing in any of the
Flow water.
FOAM
button has been pressed,
foam discharges.
but the foam pump does not run.
Flowmeter wiring not correct.
Inspect wiring & connection to
flowmeter.
Flowmeter obstructed.
Clear flowmeter of debris.
Float is on plunger wrong,
Remove snap ring at the top of
indicating tank is low.
plunger and remove float. Turn it
over, reinstall.
Float stuck on plunger, indicating
Inspect and clean float switch.
tank is low.
Truck hydraulics not running.
Engage hydraulic PTO.
System returns to standby mode
Low electric power.
Ensure proper voltage is
while pumping or
HYPRO
appears
available.
momentarily while pumping.
Troubleshooting Continued on Next Page
Symptom
Probable Cause(s)
Corrective Action
Pump runs for 8 to 10 seconds
then shuts down.
ERR
.
HY
may
be flashed on display.
