E20: Testing Error
Repeat blood sugar test with a new strip. If running a control test, verify only CONTOUR™ control solutions are being used.
Make sure to store your strips in the original vial with the lid properly closed immediately after every use. Double check the expiration date on your strip vial and keep strips away from moisture and extreme temperature.
Do not bump or shake the meter during the test countdown. If error persists call Customer Service.