F96VTN and G96VTN: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
66
A190196
Fig. 72 – Troubleshooting Guide
Is
A
M
BE
R LED
st
a
tus light
O
N
so
li
d,
al
ternate
ly
f
las
h
ing
brig
ht-d
im-
b
ri
gh
t-dim
li
k
e
a
he
ar
tbeat,
or
flash
in
g
O
N
a
n
d
OFF
?
Is
there 24V
at
SE
C-1 and
SE
C
-2
?
Is
there
11
5
V
a
t L
1
a
n
d
L2
?
Is
the 24V
fu
se
open?
Is
d
o
o
r sw
it
ch
c
lo
s
e
d?
Re
place
t
ra
n
sf
or
me
r.
Re
p
lace
doo
r
s
w
it
ch.
Is
there 115
V
go
in
g
t
o
s
w
it
ch?
C
lo
s
e
t
h
e
do
o
r
sw
it
ch
.
Is
c
ir
cu
it
b
rea
ke
r c
lo
s
ed
?
Chec
k
for
conti
n
u
ity
i
n
w
ire
f
rom c
irc
ui
t
br
e
a
k
e
r t
o f
ur
nace.
Close
cir
c
u
it breaker
a
n
d
g
o
back to
ST
AR
T
.
Is
A
M
BER
LE
D sta
tu
s
li
g
h
t
alte
rn
ately
flash
in
g
br
ig
h
t-d
im-
b
ri
g
h
t-
d
im
lik
e
a
he
artbe
a
t?
D
e
te
rm
ine
s
ta
tus
c
o
d
e
.
T
h
e
st
at
u
s
c
o
d
e
is
a s
ingl
e
o
r
tw
o di
g
it
n
u
m
b
e
r
w
ith the
first
nu
m
b
er
de
te
rm
ine
d
by
t
h
e
nu
m
b
er
of
short flas
he
s
and
th
e s
e
co
n
d
nu
m
b
e
r
aft
er the
plus
(
+
) s
ig
n
is
the
nu
m
b
er
of
lon
g
flashe
s
?
T
h
e
la
s
t
s
ta
tu
s co
de
ha
s
c
lear
ed.
T
o
recall
a
prev
io
u
s
s
tat
u
s
co
de
dis
c
on
ne
c
t
the
R
ther
m
o
s
tat
co
nn
e
c
ti
on,
re
s
e
t
pow
e
r,
and pu
t s
e
tu
p sw
it
ch
S
W
1-1
in
th
e
O
N
p
o
siti
on
. T
h
e
A
M
BE
R
L
E
D
w
ill
fla
s
h
the s
tatu
s code
s i
n
t
h
e
o
rd
e
r o
f
occu
rren
c
e.
R
e
cord
st
atus
c
o
d
e
s
unt
il
he
artbeat fl
a
s
h
e
s. After h
e
a
rtb
eat
flas
he
s
s
ev
e
ral tim
e
s
the
s
ta
tus
co
des
w
ill repe
at.
St
at
u
s
codes ar
e
e
ras
ed
aft
er 72 ho
u
rs
or
can be ma
n
u
a
ll
y
eras
ed
by
putt
in
g
s
e
tup s
w
it
ch
S
W
1-1
in
the ON
posit
io
n
an
d j
u
m
p
er
in
g
R
,
W
/W
1
, and
Y
/Y
2
simu
ltaneous
ly
un
til t
h
e
heartbeat
fla
s
he
s.
W
hen do
n
e
pu
t se
tu
p
s
w
it
ch
S
W
1
-1
in
th
e
O
FF pos
iti
o
n
.
W
a
s
there
a
prev
ious sta
tus
c
ode
o
th
e
r
th
a
n
t
he he
a
rt
b
e
a
t?
Go
to
s
e
ct
io
n
b
e
low
fo
r
th
e
s
ta
tus
co
de
th
a
t w
a
s
fla
s
h
e
d.
D
oes th
e c
o
nt
ro
l re
s
p
o
n
d
t
o
W
/W
1
,
W
2
,
Y1
, Y/
Y2,
a
n
d G
(2
4V
)
t
h
e
rm
o
s
ta
t
signa
ls
?
Run
s
y
ste
m through
a l
o
w-
hea
t, h
igh-
he
a
t, or coo
li
n
g
c
y
c
le
to
c
heck o
p
e
rat
io
n.
Statu
s codes
are era
s
ed af
te
r
72 h
o
u
rs
or
c
a
n
b
e
ma
n
u
a
ll
y
er
ased by
p
u
tt
ing
set
up sw
it
ch
S
W
1-1
in
th
e
O
N
posi
tio
n
an
d
jum
p
e
rin
g
R
, W
/W
1
, and
Y
/Y
2
simu
ltane
o
u
s
ly
un
ti
l
th
e
heartbeat
flas
hes.
Is
24
V
p
resent
at
W
/W
1
,
W
2
, Y
1
,
Y
/Y
2
or
G
ther
m
o
s
tat
ter
m
inals
on
th
e
furnace
contro
l?
C
hec
k
ro
o
m
th
er
m
o
s
tat
o
r
in
terconn
e
ct
in
g
cable.
Di
sco
n
n
e
c
t a
ll the ther
m
o
s
tat
wi
res
fr
om
th
e f
u
rn
ac
e c
o
nt
ro
l.
D
oes
th
e
pr
ob
le
m
rep
e
at
w
h
e
n
usi
n
g
a
ju
m
p
e
r w
ire?
R
e
pl
a
c
e f
u
rn
ac
e
c
o
nt
rol
.
T
h
e
ther
m
o
s
ta
t is
not com
pat
ib
le
w
ith
t
h
e
fu
rn
a
c
e
c
o
nt
ro
l.
E
ith
er i
n
st
all
a
ba
llast
res
istor, connect
t
h
e Co
m
24V
th
er
most
at
ter
m
ina
l t
o
t
h
e
t
herm
o
sta
t,
o
r rep
lace
th
e
th
e
rm
o
stat.
YES
NO
YES
YES
YES
S
E
Y
S
E
Y
S
E
Y
YES
ST
A
R
T
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
NO
NO
T
ro
u
bles
hoo
tin
g
Gu
ide
R
e
pl
a
c
e f
u
rn
ac
e
c
o
nt
rol
.
YES
R
e
pl
a
c
e f
u
s
e
t
h
e
n
d
isc
o
n
n
e
c
t
th
e
rm
os
ta
t
leads to iso
late
sh
o
rt
ci
rcui
t.
NO
Is
A
M
BER LE
D st
a
tu
s
li
ght
O
N
so
li
d
?
NO
YES
C
heck t
o
m
a
k
e
s
u
re that
the c
o
rr
ect
m
odel plug
P
L
4
is
insta
ll
ed.
T
h
e
w
ir
ing
schem
a
ti
c sho
w
s
all valid
m
o
del
pl
u
g
s.
Is
th
e correct
m
o
de
l
pl
u
g
in
sta
ll
ed
?
T
h
e
co
nt
ro
l
is
lo
cked
ou
t
a
n
d
w
ill
au
to
-
res
e
t
after
1 h
o
ur
.
L
o
ckout
could be
d
u
e
to
an
y
of
t
h
e
fo
llow
in
g:
-
F
la
m
e
se
nse
ci
rcuit fa
il
u
re.
-
G
a
s
valve re
la
y
stuck ope
n
.
-
S
of
tw
are
c
h
e
c
k
e
rro
r.
R
e
se
t p
o
w
e
r to clea
r l
o
c
k
out. R
e
pla
c
e
contro
l if
c
o
de
r
e
p
e
ats
.
YES
R
e
p
lace
m
o
de
l
p
lug
P
L
4.
NO