Dometic Seastar DCM User's Manual And Troubleshooting Manual page 14

Troubleshooting Guide
Symptoms
When accessing a
"switching" page on Garmin
MFD there appears to be
missing switches or voids
where switches should be
When pressing a switch on
Garmin MFD the load
stays on but a momentary
operation is desired
Gauges for fuel/ water or
waste tank data erratic
When trying to load a new
configuration using Garmin
card reader with SD card the
system shuts down
On Garmin MFD Switching
page, turning on a switch,
two circuit indicators turn on
when only one should
Garmin screen shows
message "Out of Range"
(Example: Out of Range:
Freshwater)
Garmin screen shows
"Unavailable" message
instead of switches when
on "switching" page
In multi MFD installation,
switching buttons functional
only on one MFD
Fuel/Water/Waste tank data
not present on MFD
14
Garmin Screen MFD (Multi-Function Display)
Potential Causes
a) Garmin "switching"
page must be reset
a) The switch defined by
the OEM as toggle ON/
OFF, not momentary
a) Sensor wiring
a) Garmin MFD is
powered from the
DCM and is powering
off when receiving
prompt to load a new
configuration
a) DCM configuration
needs
to be updated to
correct
the issue
a) The sender/full system
may not be energized
b) DCM module is not
connected to the
NMEA 2000 network
c) The sender is not
properly connected to
DCM module
a) Garmin MFD not
connected to NMEA
2000 network
b) SeaStar Instance not set
on MFD
c) Switching page needs
to
be reset
MFD instancing does not
match DCM config file
a) Tank sender not
connected to DCM
module
b) Tank sender type
NMEA instance
incorrect on MFD
Checking Steps and Solutions
a) From the problematic Garmin screen "switching" page press: Menu > Edit
switches > Replace all switches, then select which switch group you desire for
the particular page.
a) Provide feedback to dealer and OEM.
a) After verifying gauge data is supposed to come from DCM device, check
wiring at tank sensor and DCM.
a) Place DCM output fuse for MFD into "Bypass Mode" to give continuous power
to MFD during update. It is recommended that a correction to the DCM
configuration is made using SeaStar DCM configuration tool so the particular
output does not power off during future configuration uploads. Call OEM or
SeaStar Service for assistance as needed.
a) Correct DCM configuration using SeaStar DCM configuration tool. Call OEM
or SeaStar Service for assistance as needed.
a) Check the sender's breaker is in the "ON" Position.
b) Find associated DCM module and check device for loose NMEA 2000
connection.
c) Check for sender data at DCM module using a multi-meter.
a) From the Garmin screen homepage press: Settings/ Communication/ NMEA
2000 set-up/ Device List... Does the device list show other devices on the
NMEA network? If not, replace Garmin unit's NMEA drop cable. If problem
persists refer to section 3.2 "NMEA 2000 Network Troubleshooting".
b) From the Garmin screen homepage press: Settings > My Vessel > Switching >
SeaStar > SeaStar Instance to be '0'
c) From the switching page press: Menu > Edit Switches > Restore Default View
Call SeaStar Service for assistance.
a) Follow tank sender wiring to verify secure connection to designated DCM
module position. Measure voltage at the sender connection.
b) From the Garmin Gauges page press: Menu > Edit Gauges Page > Replace
Data.
EN