Accu-Chek Performa Nano
Error codes E-10
The time and date settings may be incorrect. Make sure the time and date are correct and adjust if necessary.
Accu-Chek Performa Nano
Error codes E-9
The batteries are almost out of power. Change the batteries now. If the message reappears after the batteries have been replaced, slide the battery drawer out of the meter, press any meter button, then reinsert the battery drawer back into position.
General Questions
Which pump is compatible with the Accu-Chek TenderLink infusion set?
The Accu-Chek TenderLink infusion set is compatible with the Accu-Chek Combo Insulin Pump.
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Accu-Chek Performa Nano
Error codes E-8
The temperature is above or below the proper range for the system. Refer to the test strip package insert for system operating conditions. Move to an area with the appropriate conditions, wait 5 minutes, and repeat the blood glucose test or control test. Do not artificially heat or cool the meter.
General Questions
How do I insert the Accu-Chek TenderLink infusion set?
Please watch the video on this page and refer to the Accu-Chek TenderLink quick reference guide for the steps required to insert the Accu-Chek TenderLink infusion set.
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Check other FAQ categories by clicking on the below category names below
Accu-Chek Performa Nano
Error codes E-7
An electronic error occurred, or in rare cases, a used test strip was removed and reinserted. Turn the meter off and on, or take the battery out for 20 seconds and reinsert it. Perform a blood glucose or control test.
Accu-Chek Performa Nano
Error codes E-6
Blood or control solution was applied to the test strip before the flashing drop symbol appeared on the display. Discard the test strip and repeat the blood glucose or control test.
Accu-Chek Performa Nano
Error codes E-5
This message may appear when using a white code chip in the meter. It means the white code chip is from an expired lot of test strips. Turn the meter off and insert a black activation chip. Make sure the time and date in the meter are correct.
Accu-Chek Performa Nano
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.
Accu-Chek Performa Nano
Error codes E-3
The user's blood glucose may be extremely high or a meter or a test strip error has occurred.
- If the test result matches how the user feels, contact a healthcare professional immediately.
- If the test result does not match how the user feels, repeat the blood glucose test.
- If the E-3 code still appears for the blood glucose test, the user's blood glucose result may be extremely high and above the system's reading range. Contact a healthcare professional immediately.
- If the second test result does not match how the user feels, 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 Chapter 4 of the Accu-Chek Performa Nano User Manual - Understanding Out-of-Range Control Results.