26
Troubleshooting Chart
Sheet 1 of 2
Not
es
:
1)
In
te
gr
at
ed
cont
ro
l m
odu
le
will aut
om
at
ic
ally
at
te
m
pt
to
r
es
et
f
rom
loc
k out
af
te
r one hou
r.
2)
LE
D f
las
h c
ode
will c
eas
e if
power
to
th
e
co
nt
ro
l m
odule
is
int
er
rupt
ed t
h
rough t
he
d
is
conne
ct
or
door
s
w
itc
h
.
3)
In
te
gr
at
ed
cont
ro
l m
odu
le
will aut
om
at
ic
ally
at
te
m
pt
to
r
es
et
f
rom
loc
k out
af
te
r 20 m
inut
es
.
Sy
m
p
toms
of
A
bnor
mal
O
per
ati
o
n
A
sso
cia
te
d
LED
C
ode
(S
ee
N
ote 2)
F
aul
t D
es
cr
ip
tio
n(
s)
Pos
si
bl
e C
aus
es
-
F
ur
nac
e f
ails
to
oper
a
te.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
LE
D pr
ov
ides
no
s
ignal.
No
ne
-
No 115 V
p
ower
to
f
ur
n
ac
e,
o
r
n
o
2
4
V
po
w
e
r
to
int
egr
at
ed c
on
tr
o
l m
od
ule.
-
B
lown f
u
se
, o
r c
ir
cuit
b
reak
er
.
-
No s
ign
al
fr
om
ther
m
os
ta
t.
-
Ma
nu
a
l d
isco
nn
ec
t sw
itch
O
F
F
, d
oo
r
sw
itc
h o
pe
n,
o
r
2
4
V w
ire
s m
isw
ire
d,
lo
os
e o
r m
isco
n
ne
ct
ed
w
ire
s.
-
B
lown f
us
e,
or
c
irc
uit
br
eak
er
.
-
Im
pr
op
er
th
e
rm
os
tat
c
on
nec
tion or
s
et
ting.
-
F
ur
nac
e f
ails
to
oper
a
te.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
LE
D is
lit
c
on
tin
uous
ly
.
Cont
inuo
us
On
-
In
te
g
rat
ed c
ont
ro
l m
odule
ha
s
a
n
in
te
rn
al
fa
ul
t.
-
I
nt
e
gr
at
ed c
ont
ro
l m
odu
le
h
as
an
i
nt
e
rn
al
fa
ul
t.
-
F
ur
nac
e is
not
o
per
at
ing
-
F
u
rn
ac
e
lo
ck
o
ut
due
to
an ex
ce
ss
iv
e
-
F
ailur
e
to
es
ta
blis
h
fl
a
m
e.
Caus
e
m
ay
be no gas
t
o
bur
n
er
s,
f
ront
c
o
ve
r p
res
su
re
s
w
itc
h
st
uc
k
open,
b
ad ignit
er
or
ignit
er
alig
nm
ent
, im
pr
ope
r
o
rif
ic
es
, or
c
oat
ed/
ox
idiz
ed or
m
is
co
nnec
te
d
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
LE
D is
f
las
hi
ng one f
las
h
.
1
F
las
h
nu
m
b
er
of
ignit
ion "
ret
ri
es
"
(3
to
ta
l
atte
m
pt
s)
, o
r "
re
cy
cl
es
" (
5 t
ota
l
re
cy
cl
es
).
S
ee
n
ote
1
.
f
lam
e
se
ns
o
r.
-
Los
s o
f f
lam
e a
fte
r es
ta
b
lis
hm
ent
.
Cau
se
m
a
y
be
int
er
ru
p
ted
ga
s s
upply
, la
zy
bur
ner
f
lam
es
(im
pro
per
g
as
p
re
ssu
re
o
r
re
st
rict
io
n i
n f
lu
e
a
nd/
or
c
om
bus
tion
air
pi
ping)
,
fr
ont
c
ov
er
p
res
su
re
s
w
itc
h
op
ening,
or
im
pr
ope
r in
duc
ed
dr
af
t blo
w
e
r
p
er
for
m
a
nc
e.
-
F
ur
nac
e f
ails
to
oper
a
te.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
L
E
D
is
fl
as
hi
ng
tw
o fl
as
h
es
.
2 F
las
he
s
- P
re
ssu
re
s
w
itch
ci
rc
ui
t i
s cl
os
ed
ev
en
th
oug
h in
duc
e
d d
raf
t bl
ow
e
r
is
no
t oper
a
tin
g.
-
I
nduc
e
d d
raf
t b
lower
pr
es
su
re
s
w
itc
h
c
o
nt
a
ct
s s
tic
ki
ng
.
-
S
hor
ts
in pr
es
su
re
s
w
itc
h
ci
rc
uit
.
-
Indu
ced dr
af
t blower
r
un
s
co
nt
inuous
ly
wit
h
no
fu
rt
he
r f
ur
nac
e
o
per
at
ion.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
L
E
D
is
fl
as
hi
ng
th
re
e fl
as
he
s.
3 F
las
he
s
- P
re
ssu
re
s
w
itch
ci
rc
ui
t d
o
es
n
ot
cl
os
e i
n r
es
pon
se
to
in
du
ce
d
dr
af
t
bl
ow
e
r
o
per
at
ion
.
-
P
res
su
re
s
w
itc
h
ho
se
bloc
ke
d
, pinc
h
ed,
or
m
is
conne
ct
e
d.
-
B
loc
ked
flue
an
d/
o
r in
let
air
pip
e,
blo
ck
e
d
dr
ain
s
ys
tem
, o
r wea
k
indu
ced
dr
af
t
blower
.
-
In
co
rre
ct
p
re
ssu
re
sw
itch
se
t p
oi
nt
o
r
m
a
lfu
nct
io
ni
ng
sw
itch
co
nt
a
ct
s.
-
Loo
se or
m
is
conne
ct
ed w
ir
ing.
-
C
irc
ula
tor
blo
w
e
r r
uns
c
ont
inuo
us
ly
wit
h
no
fu
rt
he
r f
ur
nac
e
o
per
at
ion.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
L
E
D
is
fl
as
hi
ng
fo
ur
fl
as
h
es
.
4 F
las
he
s
-
P
rim
ar
y
lim
it
ci
rc
uit
is
o
pen.
(P
rim
ar
y or
aux
ili
ar
y
lim
it)
.
-
I
ns
uf
fic
ient
c
ondit
ione
d a
ir o
ve
r t
he
hea
t ex
ch
anger
.
C
aus
e
m
ay
b
e
bloc
ked
filt
er
s,
r
es
tr
ic
tiv
e
d
uc
tw
o
rk
,
im
pr
ope
r c
irc
ulat
or
blower
s
p
eed,
o
r
fa
iled c
irc
ulat
or
blower
.
-
Loo
se or
m
is
conne
ct
ed w
ir
ing.
-
C
irc
ula
tor
blo
w
e
r r
uns
c
ont
inuo
us
ly
wit
h
no
fu
rt
he
r f
ur
nac
e
o
per
at
ion.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
L
E
D
is
fl
as
hi
ng
fi
ve
fl
a
sh
es
.
5 F
las
he
s
-
Rollo
ut
lim
it
ci
rc
uit
is
op
en.
-
Rol
lout
lim
it(
s)
is
(a
re
)
open
du
e
to
f
lam
e r
ollout
.
C
aus
e
m
ay
b
e
m
is
aligne
d b
ur
ner
s,
bloc
ke
d f
lue
a
nd/
or
air
inlet
p
ipe,
o
r
fa
iled indu
ced dr
af
t blower
.
-
Loo
se or
m
is
conne
ct
ed w
ir
ing.
-
F
ur
nac
e f
ails
to
oper
a
te.
a
nd
-
In
te
gr
a
ted
c
o
nt
ro
l m
o
dule
diag
nos
tic
L
E
D
is
fl
as
hi
ng
s
ix
fl
as
he
s.
6 F
las
he
s
-
P
o
la
rity
o
f 1
15
V
o
r 2
4 V
A
C
p
ow
er
is
re
ve
rs
ed
.
-
P
olar
ity
o
f 11
5
V
A
C
power
t
o f
ur
nac
e o
r
i
nt
e
gr
at
ed
cont
ro
l m
odul
e is
r
e
ve
rs
ed.
-
O
rang
e a
nd
gr
ay
wir
e
s t
o
tr
ans
fo
rm
e
r a
re
re
ve
rs
ed
.
- P
oor
un
it
gr
ou
nd
.
1
1
3
4
5
6
ON
2
C
o
rr
ec
tiv
e
A
cti
on
C
auti
ons
an
d
No
te
s
-
A
ss
ur
e 115 V
a
nd 24 V
power
t
o f
ur
nac
e
a
nd int
egr
at
ed
c
ont
ro
l m
odule
.
-
C
hec
k int
egr
at
ed c
on
tr
ol
m
odu
le f
us
e (
3 A
).
Replac
e if
n
ec
es
sar
y.
-
C
hec
k f
or
pos
si
ble s
hor
ts
in 115 V
a
nd 24 V
c
irc
uit
s.
R
epair
as
ne
ce
ss
a
ry
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
R
ep
la
ce
in
te
g
ra
te
d c
on
tr
ol
m
od
ul
e
fu
se
w
ith
3
A
a
uto
m
oti
ve
s
ty
le
fu
se
.
-
R
eplac
e
b
ad int
egr
at
ed c
on
tr
o
l m
odu
le w
ith
k
nown
goo
d
cont
ro
l m
o
dule.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
R
ead pr
ec
aut
ions
in "
E
lec
tr
o
st
a
tic
Dis
char
g
e"
s
ec
tion of
m
anua
l.
-
L
oc
at
e and c
or
rec
t ga
s
in
te
rr
upt
ion.
-
C
hec
k f
ront
c
ov
er
pr
es
su
re
s
w
itc
h
o
per
at
ion (
ho
se,
wir
ing
, c
ont
ac
t oper
a
tio
n)
.
Cor
rec
t if
nec
es
sa
ry
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
R
eplac
e o
r r
ealign
ign
ite
r.
-
C
hec
k f
lam
e s
ens
e
s
ignal.
S
and s
e
ns
or
if
c
oat
ed/
ox
id
iz
ed.
-
Ig
ni
to
r i
s fr
ag
ile
, h
an
dl
e w
ith
c
ar
e.
-
S
and
fl
a
m
e
s
e
ns
or
wit
h
e
m
e
ry
c
lot
h
-
S
ee "
F
lu
e and Com
bus
tio
n
A
ir P
ip
e"
s
ec
tion
fo
r
pi
pin
g d
eta
ils
.
-
C
hec
k f
lue pipin
g
fo
r bloc
ka
ge
,
p
roper
len
gt
h
, elbo
w
s,
and t
er
m
inat
ion.
-
V
er
ify
pr
o
per
induc
ed dr
af
t blower
per
fo
rm
anc
e.
-
R
eplac
e i
nduc
e
d d
raf
t bl
ower
p
res
su
re
s
w
itc
h
if
bad
.
-
C
hec
k f
or
and c
or
rec
t s
h
or
ted w
ir
ing.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
R
eplac
e
pr
es
su
re
s
w
itc
h
wit
h
pr
oper
r
ep
lac
em
ent
par
t.
-
C
hec
k and c
or
rec
t pr
e
ss
ur
e
s
w
itc
h hos
e.
-
C
hec
k f
lue and/
or
inle
t air
pipin
g
fo
r bloc
kage
, pr
op
er
len
gt
h
, elbo
w
s
and
te
rm
inat
ion
.
C
hec
k dr
ain s
ys
tem
.
-
V
er
ify
pr
o
per
pr
es
su
re
s
w
itc
h
se
t po
int
and
c
o
nt
a
ct
m
ot
ion.
-
C
hec
k and c
or
rec
t wir
ing
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
S
ee "
F
lu
e and Com
bus
tio
n
A
ir P
ipe"
s
ec
tion f
or
pipin
g
d
et
a
ils
.
-
R
eplac
e
pr
es
su
re
s
w
itc
h
wit
h
pr
oper
r
ep
lac
em
ent
par
t.
-
C
hec
k f
ilt
er
s and duc
tw
or
k f
or
bloc
ka
ge
.
C
lean f
ilt
er
s or
r
em
ov
e obs
tr
uc
tio
n.
-
C
hec
k f
or
pr
ope
r
ci
rc
ulat
or
blo
w
e
r
sp
eed and
pe
rf
or
m
anc
e.
Co
rr
ec
t s
peed
or
r
epl
ac
e blower
if
nec
e
ss
ar
y.
-
C
hec
k and c
or
rec
t wir
ing
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
S
ee
S
pec
ific
at
ion
S
heet
fo
r a
llowable
r
is
e r
a
nge
and
pr
oper
c
irc
u
lat
o
r
b
lower
s
peed
.
-
C
hec
k bur
ne
rs
f
or
pr
ope
r
a
lignm
ent
.
-
C
hec
k f
lue and/
or
air
inle
t pipin
g
fo
r bloc
kage
, pr
op
er
lengt
h,
el
bows
, an
d
te
rm
ina
tio
n.
-
C
hec
k induc
ed dr
af
t b
lower
f
or
pr
ope
r
p
er
for
m
an
ce.
Rep
lac
e if
nec
e
ss
ar
y.
-
C
hec
k and c
or
rec
t wir
ing
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
-
S
ee "
F
lu
e and Com
bus
tio
n
A
ir P
ipe"
s
ec
tion f
or
pipin
g
d
et
a
ils
.
-
R
eplac
e
in
duc
ed
dr
af
t blo
w
e
r wit
h
pr
ope
r r
e
plac
e
m
e
nt
par
t.
- R
evi
ew
w
iri
n
g d
ia
gra
m
.
-
V
er
ify
pr
o
per
gr
oun
ding.
-
C
hec
k and c
or
rec
t wir
ing
.
-
T
u
rn
p
ow
er O
F
F
p
rio
r t
o
re
pa
ir.
