page 96 of 121
Fault
Possible cause
Remedy
❑
Digital pressure
reading is flashing,
one blip*.
➨
Overpressure at the
pressure transducer,
pressure > 795 Torr
(1060 mbar)?
✔
Release pressure imme-
diately (risk of bursting).
❑
Warning triangle
and black valve
symbol are flash
-
ing, two blips*.
➨
External venting valve
removed or defective?
✔
Connect valve or replace
with a new one or recon-
figure without valve.
❑
Warning triangle
and valve symbol
are flashing, three
blips*.
➨
Pump and in-line valve
connected?
✔
Disconnect in-line valve;
switch controller off/on to
reconfigure.
❑
Warning triangle
and coolant valve
symbol are flash
-
ing, four blips*.
➨
Coolant valve removed
or defective?
✔
Check connection cable
of the valve; or use new
valve or reconfigure with
-
out valve.
❑
No digital pressure
reading. Warning
triangle is flashing,
five or seven blips*.
➨
Five blips: External
pressure transducer
defective or removed?
✔
Connect pressure trans-
ducer or replace with a
new one or reconfigure
without pressure trans-
ducer.
➨
Seven blips: Internal
pressure transducer
defective?
✔
Contact local distributor.
❑
Warning triangle
and pump symbol
are flashing, six
blips*.
➨
Pump and VMS**
(Vacuum Management
System) connected?
✔
Remove VMS. Restart
controller.
➨
Fault at the VARIO
pump or at the VMS?
✔
Check pump and/or VMS,
restart controller.
➨
Connecting cable from
pump or VMS removed?
✔
Check cable connections.
❑
Clock symbol is
flashing.
➨
Preselected process
time is over?
✔
Confirm by pressing
START/STOP key.
❑
Internal venting
valve does not re-
spond, valve sym-
bol is not displayed.
➨
External pressure
transducer connected
and active?
✔
Select internal pressure
transducer or connect
external venting valve.
❑
Venting valve does
not respond, valve
symbol is displayed.
➨
Venting valve contami-
nated?
✔
Clean valve.
