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BAS-SVU025A-EN
Troubleshooting
The following troubleshooting suggestions are meant to help resolve most common problems
associated with the Tracer SC. If you unable to resolve the problem, contact a qualified Trane
service technician or the Trane Product Support team.
Troubleshooting with LEDs and the 7-Segment Display
The LEDs and the 7-segment display can be used for troubleshooting. Refer to the following table
for causes and resolutions to specific LED displays. See
“LEDs and the 7-Segment Display,” p. 41
for LED locations on the Tracer SC.
Force Return to Factory Defaults
In some cases, a corrupt database or similar problem may prevent you from accessing theTracer
SC user interface in order to return to factory defaults.
If this occurs, do the following to return to factory defaults:
1.
Power down the Tracer SC.
2. Reset the rotary switches to “999.”
3. Power up the Tracer SC.
The 7-segment display shows F, o, r, C, E.
4. Within 30 seconds, set the rotary switches to the intended normal value.
The 7-segment display shows C, L, E, A, r, indicating that the database is being cleared. It will
then resume normal operation showing –L on the 7-segment display during startup and then
“dancing dashes.”
Note:
If rotary switches are not reset within 30 seconds, theTracer SC will power down leaving
the database intact.
Event
Probable cause
Resolution
7-segment display sequence does not follow
the start-up sequence
May indicate a failure of the Tracer SC.
To reset the Tracer SC, press the power button
to shut down, and then press again to restart.
Contact the Trane Product Support team if this
does not solve the problem
F code displays on the 7-segment display
Indicates a fatal error.
Contact the Trane Product Support team for
assistance.
H, o, L, D displays on the 7-segment display
This code indicates that a recoverable error is
present, and is waiting to restart. The restart
process may take up to four hours.
Contact the Trane Product Support team if your
Tracer SC does not restart after the maximum
four hour period.
Ethernet LINK LED is not illuminated
This indicates that the Tracer SC is not
connected to Ethernet.
Check all cables and connections. It may be
possible that the Ethernet cable is not working.
Attempt to resolve by replacing the Ethernet
cable.
Ethernet ACT LED is not illuminated
This indicates that communication does not
exist between the Tracer SC and Ethernet.
Verify that the IP address you have entered is
correct.
Red status LED along with an F code or H code
on the 7-segment display
Contact the Trane Product Support team
Status LED is unlit.
The Tracer SC is not receiving power.
Verify that the power supply is functioning
properly.
LonTalk Service LED is red
Note:
Upon startup the LonTalk LED is
momentarily red and is not a cause for
alarm.
Contact the Trane Product Support team.
7-segment display shows 3, 2, 1 and then
lower-left, upper-right in sequence
Indicates that the application is shutting down
and not restarting.
Attempt to resolve the problem by cycling
power to the SC. If it recurs, contact the Trane
Product Support team.
