Troubleshooting 7-1
7 Troubleshooting
7.1 Overview
If you have difficulty operating your dispensing system, use this section to identify a possible solution to
the problem. If you have difficulties not listed in this section, or the suggested solution does not correct
the problem, contact Nordson ASYMTEK Technical Support. This section covers the following
troubleshooting procedures:
• Dispense Head Controller Connections and Functions
• Mechanical/Tactile Height Sensor
 NOTE There are no user serviceable parts inside the electrical modules. Refer to the Fluidmove
User Guide or Online Help for assistance with Fluidmove.
7.2 Safety First
Operation of your S2-900 Dispensing System involves air pressure, electrical power, mechanical devices,
and potentially the use of hazardous materials. The S2-900 is an automated fluid dispensing system and
the type of fluids used vary widely. Customers should consult and adhere to their own internal safety
procedures with regard to material handling and the requirements outlined in their material safety data
sheets for the particular fluid being used. It is essential that every person servicing or operating the
dispensing system fully understands all hazards, risks, and safety precautions. Refer to Section 2 - Safety
for important safety information.
WARNING! Allow only qualified personnel to perform system troubleshooting. Observe and
follow the safety instructions in this document and all other related
documentation. Failure to do so may cause serious bodily injury to the user or
damage to the equipment.
7.3 Record Keeping
The type of procedure performed should be recorded in maintenance records for the dispensing system.
Dates, part numbers/serial numbers of replaced parts, names of technicians, and other pertinent data
should be recorded.
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