What does E-6 mean on an accu-check meter?

E-6 on an Accu-Chek meter indicates a problem with the meter's internal components or a malfunction. This error may occur due to issues like low battery power, a defective test strip, or a need for calibration. It's advisable to check the battery, replace the test strip, and consult the user manual for further troubleshooting steps. If the error persists, contacting customer support may be necessary.