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Error
Message
What it May Mean
What to Do
E-3
Blood drop is too
small
or
Incorrect test
procedure
or
There may be a
problem with the
test strip .
1 . Review the testing
instructions .
2 . Repeat the test using a new
test strip .
3 . If the error reappears, contact
Customer Service .
E-4
The blood glucose
level may be too
high to be read by
the system
or
There may be a
problem with the
test strip .
1 . Repeat the test using a new
test strip .
2 . If the error reappears, contact
your health care professional
immediately .
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