6
Troubleshooting
Troubleshooting by User
Thermo Scientific
Heraeus Fresco 17 / 21
6-3
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 runs down
without being braked. The centrifuge door
cannot be opened.
No mains connection
1. Is the centrifuge turned on?
2. Check the mains connection.
If an error message appears again, inform Customer Service.
Display fails briefly
The drive stops. The centrifuge runs down
without being braked.
Mains connection interrupted for some seconds,
1.
Turn off mains swi
t
ch.
2.
Check whether the mains power cord is connected properly
3.
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 door
using the mechanical emergency door release (
-
Exceptionally running noise.
Imbalance
1. Stop the centrifuge. Press the
key or unplug mains power
cord.
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 is
responsible for the run noise.
If an error message appears again, 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 an error 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.
E-01 - E-13
Rotor stops with deceleration to standstill.
The centrifuge cannot be operated.
Internal program error
Switch the instrument off and on again.
If an error message appears again, inform Customer Service.
