Accuracy

When should I run a control test?

Performing a control test lets you know the meter and test strips are working properly.

Reasons to perform a control test, but are not limited to:

  1. You open a new test strip box.
  2. Your test result does not match how you feel.
  3. The test strips were stored in extreme temperatures or high humidity.
  4. The test strip container was left open.

Other categories

Check other FAQ categories by clicking on the below category names.

Accu-Chek Guide Link

Error codes E-7

An electronic error occurred.

Remove the batteries, press and hold the Power/Set/OK button for at least 2 seconds, and reinsert the batteries.

Perform a blood glucose or control test.

If the problem persists, please contact Accu-Chek Customer Care.

Support Categories

Accu-Chek Guide Link

Error codes E-6

Blood or control solution was applied to the test strip before Apply drop appeared.

Discard the test strip and repeat the blood glucose or control test.

If the problem persists, please contact Accu-Chek Customer Care.

Support Categories

Accu-Chek Guide Link

Error codes E-4

Not enough blood or control solution was drawn into the test strip for measurement or was applied after the test had started.

Discard the test strip and repeat the blood glucose or control test.

Support Categories

Accu-Chek Guide Link

Error codes E-3

E-3 in the display means a meter or a test strip error has occurred. In rare cases, an E-3 message may indicate that your blood glucose is extremely high and above the system’s measuring range.

In addition, the message could appear if the cap on the test strip container was not closed tightly. The test strips may have been damaged due to improper storage or handling. The following instructions should help you understand what action to take:

  • If your test result matches how you feel, contact your healthcare professional immediately.
  • If your test result does not match how you feel, repeat the test.
  • If the second test result does not match how you feel, 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.

Support Categories

Accu-Chek Guide Link

Error codes E-14

An electronic error has occurred.

Contact Accu-Chek Customer Care.

Support Categories

Accu-Chek Guide Link

Error codes E-13

Fluid or foreign material may be present in the test strip slot.

Remove and reinsert the test strip or repeat the blood glucose or control test with a new test strip.

If the problem persists, contact Accu-Chek Customer Care.

Support Categories

Accu-Chek Guide Link

Error codes E-12

Your blood sample may contain a high level of ascorbate.

Contact your healthcare professional.

Support Categories

Accu-Chek Guide Link

Error codes E-11

The test strip may be damaged.

Retest with a new test strip. If the message reappears, please contact Accu-Chek Customer Care.

Support Categories

Accu-Chek Guide Link

Error codes E-10

The time and date setting may be incorrect.

Make sure the time and date are correct and adjust, if necessary.

Support Categories