Accu-Chek Aviva Combo - Manual (Page 239)

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Display Shows Possible Cause(s) Possible Solution(s)
E-54­Not­Enough­
Sample j ­­Not­enough­blood­or­control­
solution­was­drawn­into­the­
test­strip­for­measurement­or­
was­applied­after­the­test­has­
started.
j ­­Discard­the­test­strip­and­repeat­the­test.
E-55­Code­Key­
Expired j ­­The­code­key­is­from­an­
expired­lot­of­test­strips.
j ­­This­message­may­appear­when­using­a­white­
activation­chip­in­the­meter.­It­means­the­test­strips­
expire­at­the­end­of­the­current­month.­At­the­end­of­
the­month,­discard­the­white­activation­chip­and­
any­remaining­test­strips.­Insert­a­black­activation­
chip.­Make­sure­the­time­and­date­in­the­meter­are­
correct.­If­you­need­a­black­activation­chip,­please­
contact­Roche.
E-56­Sample­
Applied­Early j ­­Blood­or­control­solution­was­
applied­to­the­test­strip­before­
the­Apply­Sample­screen­
appeared­on­the­display.
j ­­Discard­the­test­strip­and­repeat­the­test­with­a­new­
test­strip.
E-57­Electronic­
Error j ­­An­electronic­error­has­
occurred­or,­in­rare­cases,­a­
used­test­strip­was­removed­
and­reinserted.
j ­­Turn­off­the­meter­and­remove­the­batteries.­Wait­at­
least­30­seconds­prior­to­reinserting­the­batteries.­
Turn­on­the­meter­and­perform­a­blood­glucose­or­
control­test.­If­the­problem­persists,­contact­Roche.
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