What I can do with massage said E4

Hi,
This should help:
https://www.northernhealth.ca/Portals/0/Lab/Accu-Chek%20Performa%20meter%20operator's%20manual.pdf
Best of luck.

The E-1 error usually indicates that the test strip is damaged or improperly inserted. Try removing the test strip and replacing it. Try a different test strip. Open a new box of test strips and try using one from the new box.

I hope this helps. You can find the manual for the Accu-Chek Performa on the product page: https://www.accu-chek.com.au/meter-systems/performa . The direct link to the manual is currently https://www.accu-chek.com.au/download/file/fid/16491 . The error messages and trouble-shooting are to the right-hand side of the page. You will need to scroll a bit.

Cindy Wells

E9 means that the battery needs to be replaced

The information you need is in the reference guide for your meter.

The reference guide can be downloaded from
https://www.accu-chek.co.uk/gb/products/metersystems/compactplusgt.html > Related Products

if you have the blue/silver front version (and probably also if you have black version) of the meter, E-5 means
"The measurement optics are dirty or you

have inserted a test strip that has already

been used or is too old. Clean the

measurement optics (Chapter 7.1) and

repeat the test with a new Accu-Chek
Active Glucose test strip."
17.January.2015
17.January.2015111

Hi
Without having your machine type and model, I can only direct you here
ACCU CHEK downloads ACCU CHEK
where you can download manuals and error code lists for a wide range of their machines, fro which you can select yours and get the meaning for Error 5.
Hope this is helpful, if so would you please register that with Fixya
Cheers

E5 codekey expired which means that the test strips or out of date and no longer any good. You get a new codekey with a new can of test strips. A pain, I know.
E1 Re Insert test strip
E2 Incorrect code key
E3 Extremely high reading
E4 Not enough blood on test strip
E6 Control Solution too soon?
E7 Electronic error
E8 Temperature too high
E9 Change Battery.

CHECK THIS LINK.... ACCU CHEK Compact Plus screen messages ACCU CHEK

Please set in proper condition and see the manual how to use it.

"E-5" in the display means the codekey is incorrect or your test strips have expired. Make sure the time and date in the meter are correct.

The Owners Manual is available for download in a pdf format at the Accu-check website.
Simply do a Google search for their home page.