![background image](http://html.mh-extra.com/html/accu-chek/aviva-nano/aviva-nano_reference-manual_455907066.webp)
Maintenance and Troubleshooting
The meter needs little or no maintenance with normal use. It automatically tests its
own systems every time you turn it on and lets you know if something is wrong.
(See Chapter 5 on “Screen Messages and Troubleshooting.”)
If you drop the meter or think it is not giving accurate results, call the Accu-Chek
Customer Careline on 0800 701 000 (UK) or 1 800 709 600 (ROI).
To make sure the display is working properly, turn the meter off, then press and
hold
to see the complete display. All the segments should be clear and look exactly like
the picture below. If not, call the Accu-Chek Customer Careline on 0800 701 000 (UK)
or 1 800 709 600 (ROI).
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