Eppendorf 5424 R Centrifuge - Manual (Page 30)

7 Troubleshooting
Centrifuge 5424 / 5424 R — Operating manual
30
7 Troubleshooting Operating manual — Centrifuge 5424 / 5424 R see on p. Fig. Tab. p.
If the suggested measures fail repeatedly, please contact Technical Service. You can find the
contact addresses at the end of this operating manual or on the Internet under
www.eppendorf.com.
7.1 General errors
Symptom / message Cause Remedy
No display. No mains connection.  Check the mains power connection.
No display. Power failure.  Check the mains fuse for the device
(see Fuses on p. 29).
 Check the mains fuse for the laboratory.
Lid of the device cannot
be opened. Rotor is still running.  Wait for the rotor to stop.
Lid of the device cannot
be opened. Power failure. 1. Check the mains fuse for the device
(see Fuses on p. 29).
2. Check the mains fuse for the laboratory.
3. Activate the emergency lid release
(see p. 32) .
Device cannot be started. Lid of the device is not closed.  Close the lid of the device.
Device shakes when it
starts up. Rotor is unsymmetrically loaded. 1. Stop the device and load symmetrically.
2. Restart the device.
Centrifuge brakes during
a short run centrifugation,
although the short key is
pressed. The short key was released briefly more than
twice (protective function for the drive).  Press the short key continuously during a
short run centrifugation.
Temperature display
flashes.
(only 5424 R) Temperature variation from nominal value:
ΔT > 3°C.  Check the settings.
 Check unhindered air circulation through
the vents.
 Thaw ice or switch off device and allow it
to cool down.
EN
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