What can be done to troubleshoot a module comm fail in the APA6000 analyzer?

Document ID

Document ID TE6036

Version

Version 3.0

Status

Status Published

Published Date

Published Date 03/06/2019
Question
What can be done to troubleshoot a module comm fail in the APA6000 analyzer?
Summary
Module comm fail in the APA6000 analyzer troubleshooting.
Answer
A module comm fail in the APA6000 (valve comm fail, burette1 comm fail, mixer comm fail, detector comm fail) are caused by a failed communication between the analyzer and one of the internal modules. 

Power down the analyzer, and disconnect and reconnect the wiring harness that comes from the main board to the u-board near the module repeatedly.  Then power up the analyzer.  If the issue was caused by corrosion on this wire harness connector, this should clear the error. 

If the error still exists, power the analyzer down again, and remove the module. Inspect the pin connections of the module for corrosion. Unplug and replug the module repeatedly.  Then power up the analyzer.  If the issue was caused by corrosion on this module connector, this should clear the error. 

If the above steps do not solve the issue, then the problem is either the module, the u-board next to the module, the wiring harness, or the main circuit board.  These parts should be replaced one by one in order to find the source of the issue.

 

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