10. C300 Controller Troubleshooting
10.10. Communication and system time faults during startup
R500
April 2017
Series 8 C300 Controller User's Guide
Honeywell
261
Redundant Primary C300 Controller with no Memory Retention
Controller
Faceplate
Problem
C300 Block
Time Source
Station Alarm
Resolve
Status
LED
Blinking
Red
No communication on FTE
network
Controller does not complete
startup.
None
C300
OFFNET
When FTE and
CDA
communication
is established:
C300 Not
Synchroniz
ed
Battery
Undervolta
ge
FTE
LEDs
Off
Display
COMM
CB
icon
Red
Status
LED
Blinking
Red ->
Blinking
Green
Communication on FTE
network
No Communication via
CDA
Unable to establish
connection to system
time source
None
C300 OFFNET
When FTE and
CDA
communication
is established:
C300 Not
Synchroniz
ed
Battery
Undervolta
ge
FTE
LEDs
Blinking
Green
Display
TS for 3
min. then
-> NODB
CB
icon
Grey
Status
LED
Blinking
Red ->
Blinking
Green
Communication on FTE
network
Communication through
CDA
Unable to establish
connection to system
time source
CDA
C300 Not
Synchronized
FTE
LEDs
Blinking
Green
Display
TS for 1
min.
then ->
NODB