If the control result is not inside the acceptable range (printed on the test strip container), do
not use the meter until you solve the problem. Here are some things you can check:
Troubleshooting Checks
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1. Are the test strips or control solution past
the "Use By" date or discard date?
2. Did you wipe the tip of the control solution
bottle with a tissue prior to use?
3. Were the test strip container and control
solution bottle always closed tightly?
4. Was the test strip out of the container for
more than three minutes?
5. Were your test strips and control solution
stored in a cool, dry place?
Action
If either is past the "Use By" date or discard
date, throw it away.
Wipe the tip of the bottle with a tissue.
Repeat the control test with a new test strip
and a fresh drop of control solution.
If you think either may have been uncapped
for some time, replace the test strips or
control solution.
Repeat the control test with a new test strip.
Repeat the control test with properly stored
test strips or control solution.