Accu-Chek Mobile User Manual page 234

16 Symbols, messages, problems and error messages
E‑7
A meter error occurred.
If the error message reappears after turning on the
meter:
Contact Accu-Chek Customer Care.
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E‑8
The ambient temperature or the temperature of the
meter is too low (under +8 °C) or too high (above
+42 °C) for a test.
Move to a place where the temperature is between
+10 and +40 °C and wait for the temperature of the
meter to adjust to this temperature.