Accu-Chek Performa Owner's Booklet page 63

The test strip is
damaged. Remove the
test strip and reinsert it,
or replace it if damaged.
If the message
reappears, call the
Accu-Chek Enquiry Line.
The code chip is
incorrect. Turn off the
meter and insert a new
code chip. If this does
not fix the problem, call
the Accu-Chek Enquiry
Line.
An error occurred
during the test. Discard
the test strip and repeat
the test.
Not enough blood or
control solution was
drawn into the test strip
for measurement or
was applied after the
test had started.
Discard the test strip
and repeat the test.
61