7
Troubleshooting
Troubleshooting by user
VWR MICRO STAR 17 / 17R 7-3
Troubleshooting by user
If problems occur other than those listed in this table, the authorized customer service
representative must be contacted.
Failure message Problem with centrifuge Possible causes and cures
Display remains
dark.
The drive stops. The
centrifuge decelerates
without braking. The
centrifuge door can not be
opened.
No mains connection
1. Is the centrifuge turned on?
2. Check the mains connection.
If the display remains dark, inform Customer Service.
Display fails briefly The drive stops.The drive
stops. The centrifuge
decelerates without braking.
Mains connection interrupted for some seconds.
1. Turn off mains switch.
2. Check whether the mains power cord is connected
properly.
3. Restart the centrifuge.Restart the centrifuge.
The centrifuge door
cannot be opened.
Pressing key has no
effect.
Centrifuge door is not correctly engaged or warped.
1. Check if mains connection is working and the instrument is
switched on (display is lit).
2. If this is unsuccessful, you may open the centrifuge
doorusing the mechanical emergency door release
(“Mechanical emergency lid release” on page 7-2)
Exceptionally running noise Imbalance
1. Stop the centrifuge. Press the key or unplug mains
powercord.
2. Wait until the centrifuge comes to a complete stop.
3. Check whether the rotor is properly loaded.
Check whether a broken tube, damage to the rotor or motor
isresponsible for the run noise.
If the running noise remains exceptionally, inform Customer
Service.
Display oP appears
although lid is
closed.
Centrifuge does not start. Centrifuge door not properly closed. Open the centrifuge door
and repeat locking procedure.
If the message appears again, inform Customer Service.
Lid Rotor stops with deceleration
to standstill.
Centrifuge door was opened manually during the run. Close
centrifuge door immediately.
Rotor stops with deceleration to standstill.
For further centrifugation, you have to switch the instrument
off and switch it on again
bAL
(only VWR Micro
Star)
Rotor stops with deceleration
to standstill.
Imbalance switch releases.
1. Open the centrifuge by pressing the key.
2. Check whether the rotor is properly loaded.
3. Check whether a broken tube or damaged rotor released
the imbalance switch.
If an error message appears again, inform Customer Service.
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