User's Manual C - Accu-Chek

16Symbols, messages, problems and error messages16.4 Error messagesE‐1The following pages describe all error messagestogether with the cause and how they can be remedied.If an error message is displayed, turn the meter off:Press and hold the on/off button until the bar inthe display is filled (at least 2 seconds).If error messages occur frequently, contact Accu-ChekCustomer Care.If your meter has been dropped, that can also lead toerror messages. In this case, you should also callAccu-Chek Customer Care. The test cassette or the meter may be defective.Remove the cassette from the meter and reinsert it. If the error message reappears:Insert a new test cassette in the meter. If the error message still appears, the meter isdefective.Contact Accu-Chek Customer Care.230