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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
* Blips only if in function ”Configuration” sound is set to ”On”.
** VMS: Vacuum Management System to switch a non-VARIO-pump
Attention: All error messages have to be confirmed (deleted) by pressing key START/STOP.
Fault
Possible cause
Remedy
❑
Pump does not achieve
its ultimate vacuum or
usual pumping speed.
➨
Wrong setting at controller?
✔
Choose function ”Pump
down” and check again.
➨
Leak in the pipeline or vacu
-
um system?
✔
Check connection, pipeline
and vacuum system.
➨
Long, narrow line?
✔
Use lines with larger di-
ameter, length as short as
possible.
➨
Pump has been exposed to
condensate?
✔
Allow the pump to run for
some minutes with open inlet
port.
➨
Deposits have been formed
inside the pump?
✔
Clean and inspect the pump
heads.
➨
Diaphragms or valves defec-
tive?
✔
Replace diaphragms and/or
valves.
➨
Outgassing substances or
vapour generated in the proc-
ess?
✔
Check process parameters.
➨
Pump too hot?
✔
Allow pump to cool down,
identify and eliminate cause
of failure. Manual reset is
necessary. Switch off pump
or unplug mains.
❑
Pump too noisy.
➨
Loud exhaust noise?
✔
Connect hose or silencer to
pump outlet.
➨
Diaphragm crack or dia-
phragm clamping disc loose?
✔
Perform maintenance.
➨
Other than above mentioned
causes?
✔
Contact local distributor.
❑
Pump seized.
✔
Contact local distributor.
