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®®
• Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove
paint or markings or may corrode the DCM100 enclosure or seals.
• Ensure that the unit is mounted securely and cannot be moved relative to the mounting
surface. If the unit is loose, tighten the mounting screws.
• Check the security of the cable connected to the NMEA 2000
®
connector, and tighten if
necessary.
• Check the security of all of the battery connections, current sensor connections, and
temperature connections on the top of the unit and tighten if necessary.
7 Troubleshooting
If you notice unexpected operation of the Maretron DCM100, follow the troubleshooting
procedures in this section to remedy simple problems. If these steps do not solve your
problem, please contact Maretron Technical Support (refer to Section 9 for contact
information).
Symptom Troubleshooting Procedure
No DC power data
visible on NMEA 2000
®
network.
Ensure that the DCM100 is properly connected to the NMEA
2000
®
network.
Ensure that the battery voltage, current sensor, and temperature
sensors are properly connected to the DCM100.
Ensure that the DCM100 has the appropriate NMEA 2000
®
PGNs
enabled as described in Section 2.5.4.14.
Battery State of Charge
shows 100% before the
charge cycle is finished
Ensure that the Peukert exponent you have entered for the battery
is correct.
Synchronize the DCM100 with the battery.
Battery State of Charge
jumps from 95% or
lower to 100% when the
charge cycle is finished
Ensure that the Peukert exponent you have entered for the battery
is correct.
Synchronize the DCM100 with the battery.
Battery State of Charge
decreases while
charging and increases
while discharging
The current sensor is installed incorrectly. Reverse the direction of
the wire through the current sensor.
Warning: There are no user-serviceable components inside the Maretron DCM100. Opening
the DCM100 will expose the sensitive electronic components to adverse environmental
conditions that may render the unit inoperative. Please do not open the DCM100, as this will