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Troubleshooting
ERROR 4
Strip f ill problem.
Retest with a
new strip.
What it means
One of the following may apply:
• Not enough blood or control
solution was applied or more
was added after the meter
began to count down.
• The test strip may have been
damaged or moved during
testing.
• The sample was improperly
applied.
• There may be a problem with
the meter.
What to do
Repeat the test with a new test
strip; see blood application
(pages 38–41) or control
solution testing (pages 47–54).
If the error message appears
again, contact Customer Service
at 1 888 567-3003 (English)
(available 7 days a week,
8 a.m. – 8 p.m. Eastern Time).
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