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20901367_EN-US_PC3001 VARIO select Serie_V1.3_100720
Error
No or very little suc-
tion power
No or very little suc-
tion power
No display
Condenser (chiller)
defective
Loud operating
noises
Loud operating
noises
Cause
Deposits inside the
vacuum pump.
Diaphragms or
valves defective.
High level of vapor
generated in the
process.
Vacuum line too
long.
Pumping unit
switched off.
Power plug not cor-
rectly plugged in or
pulled out.
VACUU·BUS plug-
in connection or ca-
bles defective or
not connected.
Controller switched
off or defective.
Mechanically dam-
aged.
No hose installed.
Outlet line open.
Glass flask on EK
missing.
Torn diaphragm or
loose diaphragm
clamping disc.
Ball bearing defec-
tive.
Troubleshooting
Remedy
Clean and check
pump heads.
Replace di-
aphragms and
valves.
Check process pa-
rameter.
Use vacuum lines
with larger cross-
section.
Switch on Pumping
unit.
Check power con-
nection and cable.
Check
VACUU·BUS plug-
in connection and
cables to the con-
troller.
Replace defective
components.
Send in.
Check hose and in-
stall it correctly.
Check outlet line
connections.
Connect outlet line
to an extraction
system or fume
hood.
Mount the glass
flask
Service the vacuum
pump and replace
defective parts or
send in the device.
Personnel
Specialist
Resp.
specialist
Operator
Resp.
specialist
Operator
Specialist
51
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