Meter Maintenance and Troubleshooting
8
(The error code and Err will
alternate on the display.)
The test strip may be damaged,
not properly inserted, or was
previously used.
Remove and reinsert the test
strip or replace it if damaged or
previously used.
50
(The error code and Err will alternate on the display.)
A meter or test strip error has occurred.
Repeat the blood glucose test. If a second E-3 code appears,
perform a control test with the control solution and a new test
strip.
• If the control result is within the acceptable range, review the
proper testing procedure and repeat the blood glucose test with
a new test strip.
• If the control result is not within the acceptable range, see the
Understanding Out-of-Range Control Results section in the
chapter Control Tests.
This error could appear if the cap of the test strip container was
not closed tightly. The test strips may have been damaged due to
improper storage or handling.
In rare cases, an E-3 error code may indicate that your blood
glucose is extremely high and above the system's measuring
range. If you do not feel like your blood glucose is extremely high,
repeat the blood glucose test. See the Unusual Blood Glucose
Results section in the chapter Blood Glucose Tests. If the E-3
code still appears for your blood glucose test, contact your
healthcare professional immediately.