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.

A meter or test strip error has occurred.

This error 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.

Never make therapy decisions based on an error message.

Repeat the blood glucose test. If a second E-3 error message appears, perform a control test with the control solution and a new test strip. See the section Performing a Control Test in the chapter Control Tests.

If you continue to receive an E-3 error message, use an alternate method for testing your blood glucose, such as a backup meter and test strip. If the alternate method gives an extremely high blood glucose result, or if an alternate method is not available, contact your healthcare professional immediately.

In rare cases, an E-3 error message may indicate that your blood glucose is extremely high and above the system’s measuring range. See the Unusual Blood Glucose Results section in the chapter Blood Glucose Tests for other possible causes of the error message.

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.

The meter was unable to pair with a pump.
Retry the pairing.

The blood glucose result has not been sent to the pump.
Manually enter the test result on the pump. For instructions, refer to the compatible MiniMedTM System User Guide.

Pairing to a pump cannot be performed while in Flight Mode.
Retry pairing when the meter is not in Flight Mode.

Data cannot be sent to the paired pump because the meter is in Flight Mode.
Retry the data transfer when the meter is not in Flight Mode.

Blood glucose results were not transferred to the paired pump.
Make sure the paired pump is within range of the meter.

USB functionality is not available for this meter.
Remove the USB cable.

The meter will not turn on or the display is blank.
• Batteries are dead. Insert new batteries.
• Display is damaged. / Meter is defective.
Contact Accu-Chek Customer Care at 1-800-363-7949.
• Extreme temperatures. Move the meter to a location with a more moderate temperature.