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Troubleshooting
9
91
What it means
One of the following may apply:
• Not enough whole blood, control, or linearity 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 50-54),
control solution testing (pages 22-31), or linearity testing (pages 62-73).
If the error message appears again, contact Customer Service and/or LifeScan®
sales representative.
ERROR 4
Strip f ill problem.
Retest with a
new strip.
Yellow = 5mm margin, Red = 7mm margin
Yellow = 5mm margin, Red = 7mm margin
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