LT-33020(2)
©2013 Technifab Products, Inc.
8
Troubleshooting
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Refer to LT– 38213, Inline Cryogenic Filter Instructions, for cleaning or replacement.
If the problem continues contact Technifab Products, Inc for further assistance.
Problem Action
System will not power up or
screen is dark
Check electrical supply to make sure there is
power to the unit.
Unplug/ reset the Control Box by unplugging
the unit.
Unit switches to next tank before
active tank is empty.
Check to make sure all cables to inlet valves
are connected. A small LED in the solenoid
connector indicates the valve should be on.
If the pipe system is at room temperature, It
takes longer to deliver liquid nitrogen. Press
the onscreen Run/Stop button, press the
onscreen reset button, and press the Run/Stop
button again. A longer Switcher Timer SP
setting may be necessary.
Error message on screen
Check all wires and connectors.
On Initial Setup an error may display
“RGEF130: Input Data error”. This is caused
either by wires not attached correctly or the
value is too low to read by the PLC. Press “X”
and continue to monitor system closely.
Slow fill
Check supply dewars for liquid and pressure.
Check the screen to make sure the “Active”
light is on for a tank that has liquid nitrogen
and the tank valve is open.
Make sure the tank switcher inlet filter (if
equipped) is not plugged or clogged.
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No fill
Check to make sure the active tank has liquid
nitrogen and is turned on.
Make sure the tank switcher inlet filter (if
equipped) is not plugged.
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