Eppendorf 5424 R Centrifuge - Manual (Page 31)

31
7 Troubleshooting
Centrifuge 5424 / 5424 R — Operating manual
7.2 Error messages
If one of the following error messages appears, proceed as follows:
1. Remove fault (see Remedies).
2. If necessary, repeat centrifugation.
Symptom / message Cause Remedy
LID ERROR Centrifuge lid cannot be locked.  Try to close the centrifuge lid again.
LID ERROR Centrifuge lid cannot be released. 1. Switch the device off and back on.
2. Press the open key.
If the error occurs again:
1. Switch off the centrifuge.
2. Activate the emergency lid release
(see Emergency release on p. 32).
LID ERROR Centrifuge lid must not be released during a
run.  Wait for the rotor to stop.
LID LIFT
(only 5424 R) Centrifuge lid has not been opened wide
enough.  Open the centrifuge lid wider by hand.
INT Mains power failure during a run.  Check the mains connection.
NO RPM Error in speed measuring system.  Leave the device switched on until the
error message disappears (10 s or 6 min).
Err 6 Drive error.  Repeat the run.
 If this error message appears again,
switch centrifuge off and back on again
after > 20 s.
Err 6 Drive overheated.  Allow the drive to cool down for at least 15
min.
Err 7 Major deviation in the speed control. 1. Wait for the rotor to stop.
2. Tighten the rotor.
Err 8 Drive error. 1. Wait for the rotor to stop.
2. Repeat the run.
Err 9 to 17 Electronics error.  Switch the centrifuge off and back on
again after > 20 s.
Err 18
(only 5424 R) Too high temperature variation from nominal
value in the rotor chamber.  Check the settings.
 Check unhindered air circulation through
the vents.
 Thaw ice or switch off device and allow it
to cool down.
Err 19
(only 5424 R) Cooling circuit is overheated.  Check unhindered air circulation through
the vents and allow device to cool down.
Err 20
(only 5424 R) Temperature sensor in rotor chamber faulty.  Switch the centrifuge off and back on
again after > 20 s.
Err 21
(only 5424 R) Temperature sensor at capacitor faulty.  Switch the centrifuge off and back on
again after > 20 s.
Err 24
(only 5424 R) Cooling unit fault, e.g., overheating.  Allow the centrifuge to cool down and
repeat the cycle.
EN
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