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11. TROUBLE SHOOTING
11.1 General problems
PROBLEM
WHAT & WHERE
SUGGESTION
Piezo Over Heating, slow down dispense parameters.
Adjust longer dwell time (wait for temperature to drop
before starting again)
Intermittent, RTD connection may have a problem
Check connection of Sensor cable
loosen screws and re-align manifold
Replacing Tappet seal
Replace Tappet
Re-calibrate
Replace Tappet
Air cool is kicking On (normal)
ERROR message displayed (see Error problem)
REBOOTING
Controller keeps on
rebooting
Disconnect actuator cable, if controller reboot and stay
on the Piezo is shorted (Please Return valve to Techno
for evaluation)
Check connection of actuator cable
Manual dispensing must be in Dot Mode
Line Mode required external trigger, check external
triggering device
Nozzle maybe clogged
Syringe pressure must be On or connected
Re-calibrate
System must be On since the valve is in a Normally
Open without power
Make sure the Valve Close icon in the main menu is in
the Close Mode
Tighten up nozzle nut assembly and re-calibrate
Refer to Leakage section
FREEZES
Touch screen froze
If system froze up please reset using the On/Off switch
on the back of the controller
Valve not running
Valve running but nothing
come out
NOT
DISPENSING
DISPENSING
W/OUT
ACTIVATION
Drops or stream of material
coming out from the nozzle
Readout on controller
Between valve body and
Manifold
Nozzle
Air from valve
LEAKAGE
ERROR
