Accu-Chek Performa Nano Owner's Booklet page 71

The test strip is
damaged. Remove the
test strip and reinsert it,
or replace it if
damaged. Or the code
chip is incorrect. Turn
off the meter and insert
a new code chip. If the
message reappears,
call Roche.
The code chip is
incorrect. Turn off the
meter and insert a new
code chip. If this does
not fi x the problem, call
Roche.
Your blood glucose
may be extremely high
or a meter or a test
strip error has
occurred. If this
confi rms how you feel,
contact your healthcare
professional
immediately. If it does not confi rm how
you feel, repeat the test and refer to
Chapter 2, "Unusual Test Results." If this
does not confi rm the way you feel, run a
control test with your control solution
and a new test strip. If the control result
is within the acceptable range, review
the proper testing procedure and repeat
your blood glucose test with a new test
strip. If the E-3 code still appears for
your blood glucose test, your blood
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