8
6. Troubleshooting Guide
Please refer to this guide before calling for service.
Centrifuge will not start
Possible reason:
No power supply
Solution:
Check that power is being supplied to
the outlet
Check that the power cord is plugged
into both the wall outlet and the back of
the centrifuge
Check that power cord is not damaged
Lid lock will not release
Possible reason:
Defective lid lock
Solution:
Open manually and have unit serviced
Possible reason:
No power from PC board
Solution
Call for service
Possible reason:
Lid lock is jammed
Solution:
Call for service
Possible reason:
Centrifuge is not receiving power
Solution:
See “Centrifuge will not start”
Centrifuge cannot be started, although power is on
Possible reason:
Lid not closed correctly
Solution:
Close lid correctly
Possible reason:
No speed or time has been selected
Solution
Set speed and/or time
bAL: Error Message
Indicates imbalance
Possible Reason:
Tubes not inserted symmetrically in
rotor holes
Solution:
Load tube symmetrically
(see Section 3.4 on Loading the rotor)
Possible reason:
Sample liquid in tubes not balanced
Solution:
Make sure the same volume of liquid is
in each tube
Possible reason:
Defective or improperly adjusted
balance sensor
