Thermo Scientific thermoscientific Vanquish UHPLC System, Operating Manual

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8 • Troubleshooting
Page 124 UHPLC System
Operating Manual
Post-column cooler does not reach set temperature
Possible Cause Remedial Action
Post-column cooler not
installed correctly Verify that the post-column cooler screws are tightened and the post-column
cooler is seated properly.
Autosampler does not reach set temperature
Possible Cause Remedial Action
Ambient temperature
or humidity too high Reduce the ambient temperature (for example, by ventilating the room), and/or
ambient humidity.
8.2.9 Power and Communication
Entire system has no power (all LED status bars unlit)
Possible Cause Remedial Action
System power button
turned off Turn on the system with the power button on the front left of the system base.
Single module has no power (LED status bar unlit)
Possible Cause Remedial Action
Module power turned
off Turn on the module with its main power switch.
Module not connected
to the mains Connect the power cord.
Fuse has blown Replace the fuses (refer to Operating Manual of the module).
Error in electronic
system Contact Technical Support.
One or more modules cannot be turned off from the power button on the system base
Possible Cause Remedial Action
System power
connection
interrupted Check the system interlink connections between the system base and the system
modules, see
Signal Cable Connections ( } page 54) .