36
Installation and Operation Manual
SystemsSystems
2001 and 2002
Symptom Probable Cause(s) Corrective Action
Pump runs but produces no flow Pump is not primed. See Foam Pump Priming Check section on Page 21.
Pump loses prime, Air leak in suction hose or inlet fittings. Remove suction hose and test for leaks by
chattering noise, pressure fluctuates. pressurizing hose with water. Make sure thread
sealant has been used on all fittings.
Suction line is blocked, collapsed or Remove suction line and inspect it for a loose
too small. Iiner or debris lodged in hose. Avoid all
unnecessary bends. Do not kink hose.
Clogged suction strainer. Clean strainer.
Pump runs for 8 to 10 seconds then Speed sensor circuit open. Inspect wiring and connection to speed sensor
shuts down.
ERR.EL
may be flashed on
display. Sensor position incorrect. Check to ensure that the speed sensor is within
the proper sensing distance of .005 to .015 inches
from the pulley teeth.
Speed sensor not functioning. Replace speed sensor.
Inadequate ground or voltage. Check connections & voltage.
Pump runs full speed whenever the Poor ground to motor driver box on pump/motor Make sure screws are tight and a good ground
circuit breaker switch is in “ON”. bracket. is maintained.
No characters are displayed on the Note: The main switch is current limited
digital display. to 41 amps for System 2001/12V DC;
56 amps for System 2002 & 2002HP/12V DC;
22 amps for System 2001/24V DC;
30 amps for System 2002/24V DC.
The main power switch is not “ON”. Turn on the main power switch on the
computer control module.
Cables not correctly connected. Inspect and secure connections.
Control cable(s) defective. Replace control cable(s)
Digital display has been damaged. Replace the digital display.
Inadequate ground or voltage. Inspect connections & check voltage.
System is powered up and the Foam No water is flowing in any of the foam discharges. Flow water.
ON/OFF switch has been pressed but
the foam pump doesn’t run. Flow meter wiring not correct. Inspect wiring and connection to flow meter.
Flow meter obstructed. Clear flow meter of debris.
Flow meter not functioning. Replace flow meter.
Float is on plunger wrong–indicating tank is low. Remove the snap ring at the top of the plunger
and remove the float, turn it over and reinstall.
Float stuck on plunger–indicating tank is low. Inspect and clean float switch.
Control cable(s) defective. Check connections and replace control cable(s)
TROUBLESHOOTING GUIDE
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