Nexus 21 NX2 - Manual (Page 27)

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If the LED is constantly off, check the connections. Or the mounting of the transducer.
2. Unstable or erratic readings. Can happen in the following cases:
•
When going over shoal water, with uneven and high bottom vege-tation.
• In heavy layers of salt or noticeable ranges of water temperatures.
• In heavily agitated water containing particles of sand or some other contamination.
The bottom of the transducer may be painted with anti fouling for protection against
weed growth. It is recommended the transducer is cleaned at regular intervals
depending on what kind of waters you boat in.
Weed on the transducer can cause either no reading or unstable readings.
In general when a boat is moored in a harbour with other boats around, there can be
disturbances from signals from other depth transducers, chains or other mooring
equipment, which will result in wrong depth readings.
3.2.3 Error messages
The following error messages can appear on the display:
ERROR 2
Nexus Network is missing, check colour coded connections
ERROR 3 No data received within a given time.
ERROR 10 Range error caused by bad format e.g. 17° 70' East.
ERROR 11 Remote command that can not be performed.
ERROR 12 No response from, or missing navigator.
ERROR 13 Waypoint not defined.
ERROR 15 Functions not allowed in autopilot mode.
ERROR 16 Automatic deviation not possible due to NMEA compass selected.
ERROR 17 Automatic deviation check failed. Turn not completed, error larger
than 1,5°.
ERROR 19 The boat probably hit a wave during turn. Error larger than 1,5°.
If other error messages than the above appears on the Multi Control instrument,
contact your Nexus dealer.
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