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vial for the expiration date. Do not use test strips beyond the
expiration date or 180 days after first opening the vial. You
may need to retest using a new test strip from a new vial of
test strips.
[2]
The test strip may have been mishandled by vigorous
bending or shaking. Retest using a new test strip.
[3]
Parts of the test strip may have become covered in grease,
oil, or lotion. Retest using a new test strip.
[4]
The test strip port on your meter may be dirty. Call
Customer Service for assistance. The phone number is printed
on the back of your meter.
Error 4:
The meter was unable to produce a result or unusual test
strip problems have occurred that may be related to ex-
treme conditions.
[1]
This error may be caused by extremely high glucose. If you
are experiencing symptoms of hyperglycemia, contact your
healthcare professional immediately. If this error code persists
on retesting, call Customer Service or consult your healthcare
professional.
[2]
Confirm that you are testing within the system operating
temperature range of 50°F to 104°F (10°C to 40°C) and operat-
ing relative humidity range of 10% to 90%.
Error 5:
The meter was unable to produce a reliable result.
[1]
This may be caused by a non-blood sample, or a combina-
