Pump mode key
Pump speed arrow keys and
display
a
b
Troubleshooting question and
action blocks
a) Question b) Action
Troubleshooting
6-20
Part 1107600_03
2014 Nordson Corporation
Using the Troubleshooting Flowchart
NOTE: To use the pump operating variables table, ensure that the melter is
in the manual mode (LED on) and that the pump speed is at a setting other
than 0.
The flowchart, which is provided at the end of this section, is designed to
assist you in diagnosing and correcting a complete or partial stop in hot melt
output from the guns. The chart is organized in a simple question‐action
block format. If your response to a question is yes (Y), continue downward in
the chart to the next question or action block. If you response is no (N),
continue to the right to the next question or action block. All diagnostic paths
within the chart end with an action block that specifies one of the following
three courses of action:
Refer to information provided elsewhere in this manual
Replace a component
To return your melter to service as quickly as possible, the chart is designed
under the assumption that it is preferable to immediately replace a faulty
assembly as opposed to conducting detailed diagnostics and repair of the
assembly while the melter is out of service.
Use of the chart assumes that the melter is installed correctly and that it is set
up to support the current manufacturing process. Refer to Section 3,
Installation, for information about installing and setting up the melter.
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