![Foremost FRHI-30S Installation Instructions And Operation Manual Download Page 33](http://html1.mh-extra.com/html/foremost/frhi-30s/frhi-30s_installation-instructions-and-operation-manual_2318960033.webp)
33
TROUBLESHOOTING
Fan
and
Lights
will
not
work
at
all
at
any
speed
or
brightness,
not
responding
to
control
knobs
or
remote
control
Check
circuit
breaker
to
make
sure
it
is
on.
IF
Circuit
breaker
is
on,
GO
TO
THE
ADVANCED
TROUBLESHOOTING
section
for
further
instructions.
Light
or
Lights
do
not
work,
but
the
fan
does
Pop
out
LED
(as
shown).
Circuit
board.
Unhook
connector.
Measure
12VDC
voltage
at
connector.
If
voltage
is
there,
call
FOREMOST
to
be
sent
an
replacement
LED
assembly.
If
voltage
not
there,
call
Foremost
to
be
sent
a
replacement
control
board.
Fan
motor
runs,
but
will
not
run
at
highest
speeds
‐
3,
4,
(or
extra
speed
5
for
dual
motor
model
48S
only)
:
Take
off
speed
limiting
jumper
on
control
board.
This
should
have
been
done
during
the
“Test
before
installation”
stage
of
installation.
To
do
this
now,
you
must
remove
hood
insert
from
wooden
hood
and
lower
so
you
can
get
at
this
board.
Refer
to
page
xx
earlier
in
this
manual
for
the
complete
procedure.
Motor
runs
but
makes
rattling
or
loud
humming
noise
Take
out
baffle
filters.