Eppendorf 5424 Service Manual
7 1 User instructions Centrifuge 5424 / 5424 R — Operating manual 1 User instructions Operating manual — Centrifuge 5424 / 5424 Rseeon p.Fig.Tab.p. 1.1 Using this manual Please read this operating manual completely before using the device for the first time. Please view this operating manual as part of the product and keep it somewhere easily. The latest version of the manual and the safety instructions in your language can be found on the Internet at www.eppendorf.com. This sign is found on your centrifuge and on several pages in the operating manual. Texts labeled with this sign contain safety notes. Read these safety precautions before using the centrifuge for the first time.
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.
merge many pdf documents. Pdfsam enhanced key usage.
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.
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Err 24
(only 5424 R)
Cooling unit fault, e.g., overheating.
Allow the centrifuge to cool down and
repeat the cycle.
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