Buchi DuMaster D-480, Operation Manual

Page: 239 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
9 - Repairing the instrument 239
Interpreting combustion module error messages and troubleshooting
The following table lists combustion module error messages, explaining the causes of the errors and
giving tips for troubleshooting:
Combustion module
error messages Possible causes Measures for troubleshooting*
Ambient temperature too
high

Fan failure.

Front door of the
instrument was open
too long.
Release the thermoclick (1) above the
furnace again. (Press pin)
Then restart the instrument and the software.
Cf. last step in Replacing fuses. If
unsuccessful, please contact the service
department.
*Illustrations may vary in instrument type and model.
Performing a system test
What does the system test check?
The system test checks the following components of the analyzer for proper functioning:

Furnaces

Fan

Ball valve

Ni flap

MFCs

Valves
Performing a system test
Perform the system test in consultation with the service department. The service department will give
you the necessary instructions to perform the system test.
You can contact the service under:
www.buchi.com
Further information
Further information can be found in:

System test.