4 • Troubleshooting
Doc. 065330-05 03/2020
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Valve Errors
Cause:
A 12-port valve error has occurred.
Action:
Follow the troubleshooting steps in
Cause:
The flow rate is too high for the cartridge or disk installed.
Action:
Reduce the flow rate of the liquid syringe.
Cause:
An obstruction in the tubing is blocking movement of the syringe.
Action:
Starting with the tubing to the cartridge or disk, work backward to
the syringe to find and remove the blockage.
Cause:
An obstruction is blocking movement of the syringe.
Action:
Find and remove the obstruction.
Cause:
Loose connection between the syringe and the Valve Distribution PC
board.
Action:
Reseat the connector.
Cause:
Malfunction of the home sensor, motor drive, and/or electronics.
Action:
Contact Technical Support for Dionex products.
12-port valve cannot find home
12-port valve cannot find position
Cause:
Loose connection between the valve and the Valve Distribution PC
board.
Action:
Reseat the valve connector.
Cause:
Valve rotor is binding.
Action:
Replace the rotor and stator (see
and
Cause:
Malfunction of the motor drive and/or electronics.
Action:
Contact Technical Support for Dionex products.
