When the control acts up, it shows it in its own way: via the display, via flashing signals or simply through its behaviour. This overview sorts the message patterns and leads to the matching quick diagnoses. The exact numeric code table of your version is in the Meiller manual.
How to read the messages correctly
Always note three things: what you see, when it occurs and whether it persists after a battery change. With this information the following quick diagnoses lead you to the probable cause in a few minutes, and a phone assessment is much faster too.
Display and warning signals
Connection and range
Controls and behaviour
Frequently asked questions
Where do I find the official ISAR 3 fault codes?
The authoritative code table is in the Meiller manual of your system, as it differs by version. Our quick diagnoses classify the message patterns practically and do not replace the manual.
My code is not in the manual, what now?
Photograph the display and the type plate and send us both. We classify the message and tell you whether sending the device in makes sense.
Does a restart help with every message?
It is almost always worth a try: remove the batteries for a minute and restart. If the message disappears for good it was a one-off, if it returns there is a real cause behind it.