10 Troubleshooting

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

Symptom

No activity on the display

Troubleshooting Procedure

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 “-“ instead of a value

Data fluctuates between two different values

Use the N2KAnalyzer tool to verify whether the device providing the data to the network is in transmitting a valid data value.

Two devices on the network are transmitting the 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.

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