ICP F9MVE Series, Service And Technical Support Manual

Page: 29 / 36

SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: (F/G)9MVE
Specifications subject to change without notice.
29 440 04 4801 04
Figure 17 (CONT.) Troubleshooting Guide − Flow Chart
1
+
2
B
LO
W
E
R ON AF
T
E
R PO
W
E
R UP –
(11
5V
OR
24V
) –
N
o
rm
al
o
pe
rati
on.
B
low
er
ru
ns f
or
90
sec
on
ds, i
f u
ni
t i
s
po
w
e
re
d u
p
duri
ng
a c
al
l f
or
hea
t (R
-
W
/W
1 cl
osed)
or
w
he
n (
R
-W
/W
1 opens
)
du
ri
ng
t
he b
low
er
on
-d
el
a
y pe
riod
.
6 + 1
IGN
IT
IO
N
LO
CK
OUT
–
S
ys
te
m
f
aile
d t
o
igni
te
g
as a
nd
pr
ove
fl
am
e i
n
4
attem
p
ts. C
on
trol
w
ill a
uto
-r
eset
af
ter
3
hou
rs.
R
ef
er to
st
at
us
co
d
e
#
6.
5
A
B
N
OR
M
A
L
F
LA
M
E
-P
R
OV
IN
G S
IGN
A
L
Fl
am
e i
s pr
ov
ed
w
hi
le
gas
val
ve i
s
de
-
ene
rgi
zed.
Indu
cer
w
ill
r
un
unti
l fa
ul
t i
s
cl
ear
ed
. C
heck
fo
r:
-
S
tuck
ope
n
or l
eak
y ga
s val
ve.
2
P
RESSURE S
W
IT
CH DI
D N
O
T
OPEN
–
C
heck
fo
r:
-
O
bst
ruct
ed
pr
ess
ur
e tu
be.
-
P
ress
ur
e
s
w
itc
h st
uck
close
d.
3
LO
W
-H
EAT
PRESSURE S
W
IT
CH DI
D
NO
T CL
O
SE
O
R
REO
PENED
–
If o
pe
ns
duri
ng bl
o
w
er on
-d
el
a
y pe
rio
d,
bl
o
w
e
r w
ill
com
e o
n f
or t
he
sel
ecte
d bl
o
w
e
r
off-
del
a
y.
If o
pen
lo
n
ge
r t
ha
n 5 m
in
ute
s i
n
duc
er
shuts
of
f fo
r 1
5 m
in
utes
be
fo
re
ret
ry
.
C
heck
fo
r:
-
P
rop
er v
en
t s
iz
in
g.
-
A
ir l
eak
b
et
w
e
en
vesti
bul
e a
nd
bl
o
w
er
com
pa
rtm
ent
.
-
Lo
w
in
le
t
ga
s p
ress
ur
e (i
f L
G
P
S
us
ed)
.
-
R
estri
cte
d ve
nt.
-
D
iscon
nec
ted
o
r o
bstr
uct
ed
pr
essu
re
tubi
ng.
-
D
efec
tive
or m
is
w
ir
e
d p
ress
ur
e s
w
itch
e
s
-
E
xc
essiv
e w
in
d.
-
P
lugg
ed c
on
de
nsa
te
drai
n.
-
W
ater i
n ven
t pi
pi
n
g, p
ossi
bl
e s
ag
gi
n
g
pi
pe
.
-
D
efec
tive Ind
uc
er
m
ot
or
.
-
Low
in
du
ce
r v
ol
ta
g
e
(1
15
V
A
C
)
4
L
IM
IT
C
IRCU
IT
F
A
UL
T
–
In
dica
te
s
th
e
lim
it
or
a
fl
am
e rol
lout
sw
itc
h
is
op
en or the
fur
nac
e i
s
ope
ra
ting
in
hi
g
h-h
eat
o
nl
y
m
ode
due
to
2 s
ucc
essi
ve
lo
w-h
eat l
im
it
tri
ps.
B
lo
w
er
w
ill
ru
n f
or
4 m
in.
or
un
til
ope
n s
w
itch
rem
ak
es
w
hi
ch
eve
r i
s l
on
g
er.
If op
en
lo
ng
er
th
an
3
mi
n.
, co
de
c
h
ange
s
to lock
ou
t #
7.
If o
pe
n le
ss t
ha
n 3 m
in
.
statu
s co
de
#4
co
nti
n
ues
to
flas
h u
nti
l
bl
o
w
e
r s
huts
of
f.
Fl
am
e
rol
lout
s
w
itc
h
req
ui
res
m
an
ual
re
set.
C
h
eck
for
:
-
Loo
se bl
o
w
er w
he
el
.
-
D
efec
tive
sw
itch
o
r co
nn
ecti
o
ns.
-
Im
p
ro
per
lo
w
-
o
r hi
gh
-h
eat
gas
in
p
ut
adj
us
tm
ent
.
-
Im
p
ro
pe
r lim
it s
w
itc
h o
r n
o lim
it g
ask
et
.
-
D
irt
y filt
er
or
r
e
str
ic
te
d d
uct s
ystem
.
T
o det
erm
in
e
w
h
et
her
th
e p
ro
bl
em
is
in
the
ga
s
val
ve,
igni
ter
, o
r fl
am
e se
ns
or t
he
sy
st
e
m
can
be
ope
rat
ed
in
c
om
po
ne
nt t
est m
o
de.
T
o
check
th
e
igni
te
r
rem
ov
e th
e R
th
erm
ost
at c
on
nec
tion f
rom
the c
on
tr
ol
, r
ese
t p
o
w
e
r, a
nd
pu
t se
tu
p
sw
itch
S
W
1-6 i
n t
he
ON
posi
tion
to s
ta
rt t
he
com
po
nen
t t
est.
D
o
es t
he i
gni
te
r
gl
o
w
ora
ng
e/
w
hi
te
b
y t
he
en
d o
f th
e
15 s
eco
nd
w
arm
-
up peri
od
?
U
npl
u
g i
g
ni
te
r
har
ne
ss f
rom
co
nt
rol
and
rep
eat
com
p
on
ent
tes
t b
y
tu
rni
n
g s
etu
p
sw
itch S
W
1-6 O
F
F
a
nd t
he
n b
ack
ON.
C
heck
fo
r
1
15V
bet
w
ee
n pi
n 3
a
nd
NEUT
RAL
-L
2 o
n t
he
c
on
tr
ol
.
W
as 1
15
V
pres
en
t fo
r t
he
15
sec
on
d p
eri
od?
C
heck
co
nn
ecti
o
ns
and
r
etr
y.
If cu
rr
ent i
s n
ear
t
ypi
cal
v
al
u
e
(4.
0-6
.0 nom
in
al
) an
d
b
urn
er
s
w
ill
not
sta
y o
n, r
ep
eat
ch
eck
in
h
igh
-h
ea
t. I
f b
urn
er
s w
ill
sti
ll no
t st
a
y o
n r
epl
ace
cont
rol
.
If
bu
rn
ers op
er
ate
in
hi
gh
-h
eat
th
en s
w
itch
to l
o
w
-
hea
t, c
heck
m
ani
fo
ld
pres
su
re. I
f OK
, c
heck
bur
ne
r ca
rr
yo
ve
r
an
d fl
am
e
sens
or l
oca
tion
.
C
lean
fl
am
e
se
nso
r
w
ith
fi
n
e st
eel
w
ool
and
r
e
che
ck
cur
ren
t. N
om
inal
cur
re
nt i
s
4.0 to 6.0
m
ic
ro
am
ps.
Is
cu
rre
nt ne
ar t
ypi
ca
l v
al
ue
?
R
epl
a
ce el
ect
ro
de.
W
ill
m
ai
n bur
ner
s i
g
ni
te
an
d st
a
y
on
?
R
epl
a
ce f
ur
nac
e c
ont
rol
.
Fi
xe
d.
NO YE
S
YE
S
YE
S
NO NO
R
epl
a
ce f
ur
nac
e c
ont
rol
.
C
heck
fo
r co
nti
nui
ty
in
t
he
har
nes
s a
nd i
gni
te
r.
R
e
pl
ac
e
def
ecti
ve
com
p
on
ent
.
R
eco
nn
ect t
he
R
th
erm
os
tat
le
a
d
and
s
et
the
rm
osta
t to
call
for
h
eat.
Co
nn
ect
vol
tm
ete
r acr
oss gas val
ve
co
nn
ecti
ons
.
D
oes
gas
val
ve r
ec
ei
ve
24V
?
D
oes
gas
val
ve
ope
n a
nd
al
lo
w
g
as t
o
flo
w
?
D
o th
e m
ai
n b
ur
ner
s i
g
ni
te
?
D
o th
e m
ai
n b
ur
ner
s st
a
y o
n?
A
llo
w
bl
o
w
er
to
com
e
on
an
d
rep
eat
tes
t t
o ch
eck
for
in
te
rm
itt
en
t o
pe
ra
tio
n.
C
heck
th
at
al
l g
as v
al
ves
ar
e
tur
ned
o
n. R
epl
ace
val
ve.
C
heck
co
nn
ecti
o
ns. I
f OK
,
repl
ace
co
ntr
ol
.
Ch
ec
k fo
r:
-
Ina
deq
ua
te fl
am
e c
ar
ry
ov
er
or rou
gh
igni
tion
.
-
Lo
w
in
le
t
ga
s p
ress
ur
e.
-
P
rop
er fi
rin
g
ra
te
.
R
epe
at c
al
l f
or
he
at
and
ch
eck
fl
am
e
sens
or c
ur
re
nt
duri
ng
tri
al
fo
r i
g
ni
tio
n
peri
od.
Is
the
D
C
m
icr
oam
ps
bel
o
w
0.5
?
YE
S
YE
S
YE
S
YE
S
YE
S
NO NO
NO
NO NO NO
YE
S
6
IGN
IT
IO
N P
R
OV
IN
G F
A
ILURE
–
If fla
m
e is
not s
en
sed
d
uri
n
g t
he
tri
al
fo
r i
g
ni
tio
n
peri
od,
th
e c
ont
rol
w
ill
re
pe
at t
he i
gni
tio
n
seq
uen
ce
3 m
or
e ti
m
es
be
fo
re l
ock
out
#6 +
1
occ
ur
s.
If flam
e
sig
nal is
lost
du
rin
g t
he
bl
o
w
e
r
on-
del
a
y p
eri
od,
bl
o
w
er
w
ill
c
om
e o
n
for t
he
sel
ecte
d
bl
o
w
er
off-
del
a
y.
C
h
ec
k
the
fol
lo
w
in
g
be
for
e
goi
n
g
to
t
he
ne
xt st
ep.
-
G
as v
al
ve
tu
rn
ed
off.
-
M
an
ual
sh
ut-
off v
al
ve
.
-
G
REEN/
Y
EL
L
O
W
w
ire
M
U
ST
b
e
con
nect
ed
to f
ur
nac
e s
he
et m
et
al
.
-
F
la
m
e s
en
sor
m
ust
not
be
gr
ou
nd
ed.
2 +
5
IN
V
A
L
ID
MOD
E
L S
E
LE
C
T
ION
OR
S
E
T
U
P
E
R
R
O
R
–
If st
at
us c
ode
2 +
5
onl
y fl
ash
es
4 ti
m
es
on
p
o
w
e
r-u
p t
he
cont
rol
is
m
issi
ng i
ts m
od
el
pl
ug
P
L4
and
is
d
efa
ul
tin
g t
o t
he m
o
del
sel
e
cti
o
n
stor
ed
in
m
em
o
ry
.
If st
at
us c
ode
2 +
5
fla
shes
co
nti
n
uo
usl
y i
t co
ul
d i
ndi
ca
te
an
y
of t
he
fol
lo
w
in
g
:
-
M
od
el
pl
ug
P
L4
is
m
issi
n
g a
nd
th
ere
is
no v
al
id m
o
del
sto
re
d i
n
perm
a
ne
nt m
em
o
ry
. T
hi
s
w
ill
h
ap
pe
n i
f
you
fo
rge
t t
o i
ns
tal
l t
he m
o
del
pl
ug
P
L4
on
a s
ervi
ce
re
pl
ac
em
ent
co
n
trol
.
-
T
herm
ost
at c
al
l w
ith
S
W
1-1 ON
.
-
T
herm
ost
at c
al
l w
ith
S
W
1-6 ON
.
-
S
W
1-1 an
d S
W
1-6 bo
th
ON
.
-
T
w
o di
ff
er
ent fur
na
ce
m
o
del
s t
w
in
ne
d.
-
S
ervi
ce
r
epl
a
cem
e
nt c
ont
rol
is
in
co
rr
ect
. N
e
ed
no
n-
m
o
dul
a
tin
g
b
oar
d
w
ith
so
ft
wa
re
ve
rs
io
n V2
4
o
r la
te
r.
9
H
IG
H
-H
EAT PRESSURE S
W
IT
CH O
R
R
E
LA
Y
DI
D
NO
T
C
LO
S
E O
R
REO
PENED -
C
he
ck
fo
r:
-
C
ont
rol
rel
a
y
m
a
y be de
fecti
ve.
-
G
as
v
alve
is m
is
w
ir
ed
.
-
R
efe
r t
o st
atus
co
de
#3.
10
P
O
LA
R
IT
Y
–
C
he
ck
for c
or
rec
t l
in
e
vol
ta
ge pol
ari
ty
.
If
u
ni
ts are
t
w
in
ne
d,
check
fo
r p
ro
pe
r l
o
w
-vol
tag
e (
24V
)
tra
nsfo
rm
er ph
asi
n
g.
7
L
IMI
T
C
IRCU
IT
LOCK
OUT
–
L
ock
out
occu
rs
if
th
e lim
it o
r fla
m
e
r
oll
ou
t s
w
itc
h
is
ope
n
lo
ng
er tha
n 3
m
inut
es or 10
succe
ssive
lim
it tr
ip
s oc
cur
re
d d
ur
ing
hi
gh-
hea
t. C
ont
rol
w
ill
a
uto
-re
set
aft
er
3
hou
rs.
R
efe
r t
o st
atus
co
de
#4.
8
G
AS HEATI
N
G
L
O
CKO
U
T
–
C
o
nt
ro
l w
ill
N
O
T
aut
o
res
et. T
u
rn
off
p
o
w
e
r a
nd
w
ai
t
5 mi
nu
te
s to
re
tr
y.
Ch
ec
k fo
r:
-
S
tuck
close
d g
as v
alve
r
el
a
y
on
con
tr
ol.
-
M
is
w
ir
e o
r s
hor
t t
o g
as v
al
ve
w
ire
.
NOTE:
NUMBER
IN UPPER
LEF
T HAND
CORNER REPRESENTS FLASH CODE