Trane FD145CLFR000D Series Service Facts page 24

Service Facts
Component Failure Evaluation in Communicating Mode
User interface on the door
panel is displaying a COM.
Yellow-2, Yellow-4 and Red-3
NO
The user inferface on
the door panel has
yellow or red flashing
LEDs other then the
COM FAULT
YES
Use 24 Volt Mode
Troubleshooting
Flow Chart
Does the G1 LED
blink slowly with a
call for indoor fan
YES
Air Cleaner
operating
correctly.
Clear fault log
Trane
6200 Troup Highway
Tyler, TX 75707
For more information contact
your local dealer (distributor)
FAULT
YES
LED flashing
YES
Comfort controll is
displaying a ERROR
CODE 91
YES
Air-cleaner can not
generate a ERROR
CODE 91 on the comfort
NO
control, fault is with other
unit.
NO
users interfaces the air-cleaner stores
fault codes. Check air-cleaner COM.
Replace door
COM. bus) If device count is present
Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right
to change design and specifications without notice.
Is the COM LED
flashing a device
count (one flash for
each unit on the COM
BUS)
NO
Is the COM LED
flashing fast
NO
If COM light is on
continues the unit is
wired in the 24 Volt
Mode. Rewire in
COM Mode
NO
Like the furnace and air-handler's
light for device count (one blink for
each communicating device on the
ensure air-cleaner green light blinks
slow with indoor blower operation.
Clear fault log
Active communicating fault.
Check for 12-13 voltage DC
between Brown and Blue
wires at the air-cleaner
YES connection plug Refer to the
Interactive Troubleshoot
Guide for Communicating
Systems to identify source of
COM Fault
07/11