Garmin GTN 625 Cockpit Reference Manual page 55

Message
COOLING-
GTN overtemp.
Reducing backlight
brightness.
COOLING FAN-
The cooling fan has
failed.
CROSSFILL ERROR-
GTN software
mismatch. See CRG for
crossfilled items.
CROSSFILL ERROR-
Crossfill is inoperative.
See CRG for crossfilled
items.
CROSSFILL ERROR-
GTN Navigation DB
mismatch. See CRG for
crossfilled items.
CROSSFILL STATUS-
Crossfill is turned off.
190-01004-04 Rev. E
Description
Backlight brightness has
been reduced due to high
display temperatures. The
backlight level will remain
high enough to be visible
in daylight conditions.
GTN cooling fan is
powered, but it is not
turning at the desired
RPM.
Crossfill is configured
"on" but is not working
due to software mismatch.
An error was detected
during unit-to-unit
communication of data.
This can be caused by
problems with HSDB
wiring or by either GTN
needing service. See the
items listed in the System
section of this manual for
crossfilled items.
The navigation databases
do not match between
GTNs resulting in a loss of
communication between
two units.
Crossfilled is turned off.
GTN 625/635/650 Cockpit Reference Guide (CRG)
Action
Decrease cabin temperature
and increase cabin airflow
(especially near the GTN).
Contact dealer for service if
this message persists.
Decrease cabin temperature
and increase cabin airflow
(especially near the GTN) to
prevent damage to the unit.
Contact dealer for service.
See list of crossfilled items
listed in System section that
will no longer be crossfilled.
Contact dealer for service
and to have software
versions updated.
Start both GTNs in
Configuration Mode and
ensure that both GTNs are
configured for crossfill.
Contact dealer for service.
Check the specified
database version of both
GTNs and ensure it is up-to-
date. Updated the specfied
databse if needed.
No action.
47