All Units Troubleshooting - Carrier FSFXXAOA1180 Installation And User Instructions Manual

FSFXXAOA1180: Installation and User Instructions

All Units Troubleshooting

LED Blinking Codes
Sensor Error 1 blink
Damper Error 2 blinks
Wall Control Error
4 blinks
Filter Maintenance Slow blink (2 s ON, 2 s OFF)
Learning Mode Very slow blink (1 s ON, 10 s OFF)
Damper error
2 blinks
Wall control
error
4 blinks
Wall control does
not work
Learning mode
Very slow blink
Unit does not
provide the
required airflow
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Perform a visual
inspec on. Is
NO
there an
obstacle
connected to the J5
hindering
damper
movement?
YES
Remove the obstacle. Restore
power to the unit, note down
the Run me % se ng, and
turn it to "Test". The damper
should now work normally.
Put the Run me % back to its
previous value.
There is a short circuit in the wall
control wiring. Inspect wiring at the
wall control and on the terminal
block. Restore any connec on that
may be causing a short circuit. Is
the problem fixed?
Inspect the connec ons at
the control and at the
terminal block. Restore any
wrong connec on.
Is the problem fixed?
During the first 48 hours of opera on, the unit is gathering environmental
This can be triggered by a change of se ng, a power shortage, or powering
unit back. This blinking code is not an error.
Are filter(s) grille,
and/or hood
clogged?
YES
Perform
maintenance.
You are not sure
that your ven la on
needs are met.
Sensor error
1 blink
Restore the connec ons or, if
Are the damper
the wires are damaged,
wires in good
NO
replace the damper. Restore
condi on and well
power to the unit, note down
the Run me % se ng, and
connector on the
turn it to "Test". The damper
electronic board?
should now work normally.
Put the Run me % back to its
YES
Try connec ng an other damper to the board
(without completely installing it). Restore power
to the unit, note down the Run me % se ng,
and turn it to "Test". If the damper does not
move within 15 seconds, replace the electronic
board. If the damper now works, replace it.
Test the wall
NO
control using a
new wire. Is
the problem
fixed?
Test the wall
NO
control using a
new wire. Is
the problem
fixed?
data.
NO Are the speed
switches on the
board properly
posi onned?
NO
Refer to Sec on 3.
11
Review the Speed, Mode
and Run me % se ngs.
Refer to Sec on 3.
Verify the W and Y
connec ons.
Replace the electronic
board.
previous value.
The wall control
NO
may be
damaged. Test
using an other
wall control.
If there is no short,
NO
the wall control may
be damaged. Test
using an other wall
control.
YES
Is the measuring tool
accurate? Try using a
different tool.
NO
Calibrate tool.
A200608