Fault LED (red)
Operation
4-13
Part 1126931_01
2018 Nordson Corporation
4. The left display indicates, as follows, the component that has, or is,
failing.
If the LED on the tank key is on, the left display will indicate either 1
for the tank or 2 for the pump.
If the LED on the hose or applicator key is on, the left display will
indicate the number of the affected hose or applicator.
5. If the fault condition still exists at the end of the two‐minute monitoring
period, the ready LED will turn off, the red fault LED will turn on, the
heaters turn off, and the melter records the fault in the fault log. Refer to
Monitor Melter Faults in this section.
To be able to put the melter back into operation, the fault must be remedied
and the melter reset (reset key). Refer to Section 6, Troubleshooting, for
information about diagnosing and correcting fault conditions. Also refer to
Returning the Melter to Factory Settings.
To view the temperature of a heated component
when an F2 or F3 fault exists, simultaneously
press and hold both of the right‐display scroll
keys.
You can temporarily dismiss an F1fault (RTD)
and return to the automatic scan mode by
pressing the Clear/Reset key. The heaters will,
however, remain off. If the fault condition still
exists two minutes after pressing the clear/reset
key, the fault LED will turn back on.
When an F1 fault code appears, you can
determine whether the fault was caused by an
open or a shorted RTD by simultaneously
pressing both of the right‐display scroll keys. If
the right display indicates OP, the RTD is open, if
it indicates SH, the RTD has shorted.
If, for any reason, a component reaches 235 C
(458 F), an immediate F3 fault will occur (no
two‐minute monitoring period).
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