Maretron DSM250-01 user manual Troubleshooting

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10 Troubleshooting

If you notice unexpected operation of the Maretron DSM250, follow the troubleshooting procedures in this section to remedy simple problems.

Symptom	Troubleshooting Procedure
No activity on the display	Check the connection to the NMEA 2000® and
	connector and tighten if necessary
	Ensure that power is supplied to the connected
	NMEA 2000® cable
Expected data appears as a dash “-“	Use the N2KAnalyzer tool to verify whether the
instead of a value	device providing the data to the network is in
	transmitting a valid data value.
Data fluctuates between two different	Two devices on the network are transmitting the
values	same data. Check the Instance Numbers on all
	devices transmitting that data.

If these steps do not solve your problem, please contact Maretron Technical Support (refer to Section12 for contact information).

Warning: There are no user-serviceable components inside the Maretron DSM250. Opening the DSM250 will expose the sensitive electronic components to adverse environmental conditions that may render the unit inoperative. Please do not open the DSM250, as this will automatically void the warranty. If service is required, please return the unit to an authorized Maretron service location.

Revision 1.4.16a Page 239