User guide

page 47 of 61
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.: 999248 / 28/04/2011
Fault Possible cause Remedy
❑
Internal venting valve
does not respond, valve
symbol is not 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.
➨
Valvesoiled?
✔
Clean valve.
❑
Function ”Vac control”:
Control stops, ”arrow up”
isashing.
➨
Presetmaximumpressure
exceeded?
✔
Conrmbypressingkey
START/STOP.Adapt
maximumpressurevalueif
necessary.
❑
Function ”Pump down”:
Control stops, ”arrow
down”isashing.
➨
Pressure below preset mini-
mumpressure?
✔
Conrmbypressingkey
START/STOP.Adapt
minimum pressure value if
necessary.
❑
Function is not displayed,
no menu.
➨
No controllable device con-
nected(valve,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 controller via inter-
face 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ashing.
➨
Pumphasbeenexposedto
condensate?
✔
Allow pump to run for some
minutesatmaximumspeed
with atmospheric pressure
at the inlet.
➨
Overpressureintheexhaust
line?
✔
Openexhaustline,ensure
a free (pressureless) outlet
line.
❑
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.