Troubleshooting
52
333347F
Adhesive flow-
ing out of
one/some
applicators
when not trig-
gered
Failed valve in the open
position.
Replace dispense module.
Adhesive pressure too
high.
Reduce air pressure to air motor.
Applicator will
not heat.
Heat rod failure in appli-
cator manifold.
Check resistance on heater rods. Repair applicator manifold if heater rods
measure open.
Loose cable connection
at system or manifold.
Check cable connections on both ends of the hose.
RTD failure.
Check resistance on the RTD, if out of normal range replace RTD.
Incorrect RTD setting in
the ADM setup.
Set correct RTD value in the ADM setup screen. Consult manufacturer for cor-
rect RTD value.
Thermal cutoff is tripped.
Measure resistance of the thermal cutoff at room temperature. If open,
replace.
Adhesive leak-
ing from mani-
fold or dispense
module.
Dispense module is
loose on the manifold.
Tighten screws on loose dispense module.
Dispense module o-ring
failed.
Replace o-rings on the back of the leaking dispense module.
Failed dispense module,
adhesive leaking out
middle of dispense mod-
ule.
Replace dispense module.
Hose loose.
Tighten hose.
No melter heat.
Fuse blown in F1 and F2.
Check heater rods for a short or a short between the rod wires and ground.
Cable to over-tempera-
ture switch off or broken.
Check connection of cable to over-temperature switch both to main board and
to switch. If connection good, look for break in wire.
Over-temperature switch
tripped.
Measure over-temperature switch resistance. It should read close to 0 ohms
when at room temperature. If open, replace over-temperature switch. Make
sure main system power is off when making measurement.
Air motor will
not function.
No air being supplied to
air motor.
Check incoming air supply. air motor is disabled until system reaches “Active”
state. When “Active”, the pump air solenoid should supply air to the air motor.
Air solenoid not enabling
the air motor.
Check solenoid voltage, if 24VDC present at air solenoid replace air solenoid.
Air present at air motor
but it will not work.
Replace air motor.
System not
turning on.
No power to unit.
Check main power breaker is turned on.
Check that power plug is connected.
Problem
Cause
Solution
Summary of Contents for 24T918
Page 16: ...Component Identification 16 333347F ...
Page 103: ...Accessories 333347F 103 ...
Page 129: ...Technical Data 333347F 129 ...