Fan
flow
chart
FAN
ER
R
dis
play
appears
on
the
VFD
Ent
er
the
Serv
ice
Mode
and
turn
on
the
fan
from
the
IFc
on
menu
Is
the
volt
age
of
CN
1503
pin3
on
the
order
of
5V?
No
Dis
connect
the
harness
from
the
fan
that
is
ins
ert
ed
in
CN
1503
and
tak
e t
he
No
Is
the
volt
age
of
IC
1501
pin2
on
the
order
of
3.3V?
No
Is
the
connect
ion
bet
ween
IC
1501
pin1
and
IC
1503
pin58
brok
en?
Als
o c
hec
k w
het
her
Yes
Yes
Yes
Is
the
fan
roat
ing?
No
Replac
e t
he
fan
Chec
k around
the
fan
pow
er
supply
(IC
1501).
Yes
Is
FanStat
e of
the
Serv
ice
Mode
sc
reen
set
to
ON
?
No
Dis
connect
the
harness
from
the
fan
that
is
ins
ert
ed
in
CN
1503
and
short
pins
1
and
2
together. Does
FanStat
e of
the
Serv
ice
Mode
sc
reen
go
ON
?
No
Is
the
connect
ion
bet
ween
IC
1503
pin2
and
IC
1503
pin55
brok
en?
Als
o c
hec
k w
het
her
the
trac
e is
bridged
wit
h
the
adj
ac
ent
one.
Yes
Yes
Chec
k w
het
her
som
ething
is
caught
in
the
fan
blades.
If
there
is
not
hing
there,
replac
e
Replac
e t
he
fan.
9-13
BDP-BX58/S480/S483/S580