Troubleshooting - Broan FRESH IN FIN-180B Installation Instructions Manual

6. TROUBLESHOOTING

Risk of electric shock. Before performing any maintenance or servicing, always
disconnect the unit from its power source or turn power off at service panel.
Unit does not
deliver required
airflow
Unit is noisy
Inspect the unit for damage during
transportation (warped or kicked
housing for example). Perform a
visual inspection of the inside of the
unit. Is any component touching
the blower wheel or is there any
damage?
YES
Remove any debris or contact
customer service if damaged.
Damper does not
close
NO
Perform a visual inspection of the
damper. Make sure that the damper
can open and close freely. Remove
any obstacle hindering damper
movement. If accumulated dust
caused this issue, make sure that the
filter is present, and consider using
an optional MERV filter.
Replace the
electronic
Board.
If this is a
recurrent issue, it
may indicate that
the motor has to
be replaced.
Are the airflow
YES
settings properly
set?
NO
Restore proper
settings
NO
If the ductwork of the supply fan
is connected to the ductwork of
an AHU, turn OFF the AHU
temporarily.
Is the damper now closed?
Is the fuse
YES
located on the
electronic board
blown?
NO
Replace the
motor
⚠
WARNING
Are the filter, outdoor
hood or distribution
grille clogged or
blocked?
YES
Replace or clean
clogged parts
Perform a visual inspection of the damper.
Can the damper open and close normally?
(The damper is held closed by a magnet. It is
normal to feel some resistance when
YES
Replace the motor
that the filter is present, and consider
YES
Make sure that the unit
ductwork is connected to
the supply ductwork of the
AHU, and not on the
return ductwork.
Restore connections
NO
Are both motor
YES
connectors (J2
and J10) well
connected to
the electronic
board?
11 11
NO Is the measuring tool
accurate? Try using a
different tool.
NO
Calibrate tool
opening it.)
NO
Remove any obstacle hindering
damper movement. If accumulated
dust caused this issue, make sure
using an optional MERV filter.
Unit does not work
If the unit is connected to
the ductwork of an AHU,
turn OFF the AHU. Open
unit's door and validate
that unit really does not
work.
Use a small electric
YES
appliance to test the wall
outlet. Does the wall
outlet work properly?
NO
Refer to an
electrician
YES