Accu-Chek Aviva Combo Owner's Booklet page 262

Display Shows
E-54 Not Enough
Sample
E-55 Code Key
Expired
E-56 Sample
Applied Early
256
Possible Cause(s)
Not enough blood or control
j
solution was drawn into the
test strip for measurement or
was applied after the test has
started.
The white code key is from an
j
expired lot of test strips.
Blood or control solution was
j
applied to the test strip before
the Apply Sample screen
appeared on the display.
Possible Solution(s)
Discard the test strip and repeat the test.
j
This message may appear when using a white code
j
key in the meter. It means the test strips expire at
the end of the current month. At the end of the
month, discard the white code key and any
remaining test strips. Insert a black code key. Make
sure the time and date in the meter are correct. If
you need a black code key, please contact
ACCU-CHEK Customer Care Service Center at
1-800-688-4578.
Discard the test strip and repeat the test with a new
j
test strip.