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Eppendorf Mastercycler Gradient - Mastercycler Troubleshooting Guide; Error Message Identification and Cause

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12 Troubleshooting
Programming errors or errors regarding the handling of the personal card can be eliminated after the cause of
the error has been established.
Technical errors can be caused by interference (e.g. power failure or power fluctuations). In some cases, it is
possible to eliminate the error by switching off the device for a short period. Wait ten seconds before switching
on the device again. If the error recurs, contact a service technician.
12.1 Error messages
Error message Cause Solution
B
LOCK ChkSumErr Technical defect. Contact SERVICE.
B
LOCK TOO HOT! Defective regulation or
defective electronics.
Contact SERVICE.
C
ard changed Card removed immediately before
being inscribed.
Insert card correctly and repeat
procedure.
C
ard content not o.k. Content of card is defective. Card must be formatted.
Automatic procedure when program
is saved.
C
ard not in slot Card removed during saving process. Insert card correctly and repeat
procedure.
E
nter Tube Not all entries have been made for
a program which has been started.
Enter tube type and sample volume.
E
rr GOTO (1) Branching to a program line number
is impossible because this program
line number is in a program area
which has already been selected
for repeating using another GOTO
command.
Check GOTO command and modify
or delete if necessary. Program line
number for additional GOTO
command must not be in a section
which is already addressed by a
GOTO command.
E
rr GOTO (2) More than three GOTO commands
used for one program range.
Three GOTO commands can be used
in one program range when the areas
which have been addressed overlay
each other completely, i.e. the
program area of the second
command is greater than that of the
first command. The third GOTO
command must cover an even greater
area than that of the second
command.
E
rr Invalid Invalid command.
Parameter has not been entered.
Enter command completely or delete
command.
12 Troubleshooting

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