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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
Fault
Possible cause
Remedy
❑
No digital pressure read-
ing, warning triangle is
flashing, five or seven
blips*.
➨
➨
Five blips: External sensor
defective or removed?
Seven blips: Internal sensor
defective?
✔
✔
Plug in sensor or use new
one or reconfigure without
sensor.
Contact local distributor.
❑
Warning triangle and
pump symbol are flash
-
ing, six blips*.
➨
NT VARIO / VARIO-B pump
and VMS** connected?
✔
Disconnect one component,
restart controller.
➨
Fault at the VARIO pump or at
the VMS?
✔
Check pump and/or VMS or
reconfigure.
➨
Fault at the NT VARIO /
VARIO-B pump?
✔
Check pump and cable con-
nections, restart controller.
❑
Clock symbol is flashing,
control has stopped.
➨
Preselected process time has
passed?
✔
Confirm by pressing key
START/STOP.
❑
Internal venting valve
does not react, valve
symbol is displayed.
➨
External pressure transducer
connected and active?
✔
Select internal pressure
transducer or connect exter-
nal venting valve.
❑
Venting valve does not
respond, valve symbol is
displayed.
➨
Venting valve contaminated?
✔
Clean valve.
❑
Function ”Vac control”:
Control stops, ”arrow up”
is flashing.
➨
Preset maximum pressure
exceeded?
✔
Confirm by pressing key
START/STOP. Adapt maxi-
mum pressure value if nec-
essary.
❑
Function ”Pump down”:
Control stops, ”arrow
down” is flashing.
➨
Pressure below preset mini-
mum pressure?
✔
Confirm by pressing key
START/STOP. Adapt mini-
mum pressure value if nec-
essary.
❑
Function is not displayed,
no menu.
➨
No controllable device con-
nected (valve, VMS, VARIO
pump)?
✔
Connect devices or use con-
troller as measuring device.
❑
Controller does not
respond when pressing
keys (except ON/OFF).
PC symbol is displayed.
➨
Controller in remote mode?
✔
Control CVC 3000 via in-
terface or switch off remote
mode.
❑
Controller does not
respond when operat-
ing any keys. No change
after switching off/on.
✔
Contact local distributor.
❑
Pump does not start or
stops immediately. Warn-
ing triangle and pump
symbol are flashing.
➨
Pump has been exposed to
condensate?
✔
Allow pump to run for some
minutes with atmospheric
pressure at the inlet.
➨
Device fuse blown?
✔
Identify cause of failure. Re-
place device fuse.
➨
Overpressure in the exhaust
line?
✔
Open exhaust line, ensure a
free (pressureless) outlet line.
