89
1
1
NO
PREV
IO
US
CODE
–
S
ta
tus
cod
es
ar
e
eras
ed
aft
e
r
7
2
h
our
s
o
r
ca
n
be
m
a
nu
al
ly
eras
ed
b
y
pu
tti
n
g
se
tup
sw
it
c
h
S
W
1-1
in
th
e
O
N
p
o
si
tio
n
a
n
d
ju
m
p
e
rin
g
R
,
W
/W
1
,
and
Y
/Y
2
si
m
ul
tan
e
o
u
sl
y
until
sta
tus
co
de
#
1
1
is
fl
as
he
d
.
R
u
n
sy
st
e
m
thr
ou
gh
a
low
-
hea
t,
hi
gh
-h
eat,
o
r
co
ol
in
g
c
yc
le
to
ch
e
ck
sy
stem
.
1
2
BL
O
W
ER
O
N
AF
TER
P
O
W
ER
UP
–
(11
5
V
O
R
24V
)
–
No
rm
al
o
p
e
rati
o
n.
B
low
er
ru
ns
fo
r
9
0
sec
on
ds,
if
u
ni
t
is
p
o
w
e
re
d
u
p
d
u
rin
g
a
ca
ll
fo
r
h
e
a
t
(R-
W
/W
1
cl
osed)
o
r
w
he
n
(R-
W
/W
1
opens
)
duri
ng
the
b
lo
w
e
r
o
n-
dela
y
p
erio
d.
1
3
L
IM
IT
C
IRCU
IT
L
O
CKOUT
–
L
o
ck
out
occu
rs
if
th
e
lim
it
or
flam
e
ro
ll
out
sw
itc
h
is
ope
n
lo
ng
er
tha
n
3
m
inut
es
or
10
succe
ssive
lim
it
trip
s
o
c
cur
re
d
d
uri
n
g
h
ig
h-
hea
t.
C
ont
ro
l
will
a
u
to
-r
e
set
aft
e
r
3
hou
rs
.
S
e
ec
o
d
e3
3
.
14
IGN
IT
ION
LOCK
OUT
–
S
ys
tem
fa
ile
d
to
ignite
g
a
s
a
nd
pr
ove
fl
am
e
in
4
at
tem
p
ts
.
Cont
rol
w
il
l
a
u
to-
res
e
t
a
ft
er
3
h
ou
rs.
S
ee
statu
s
co
de
34
.
2
1
G
A
S
H
EATI
N
G
L
O
C
KO
UT
–
T
u
rn
o
ff
p
o
w
e
r
a
nd
w
a
it
5
m
in
ute
s
to
re
tr
y.
Ch
e
ck
for:
-
S
tuck
close
d
g
a
s
v
al
ve
rel
a
y
o
n
con
tr
ol
.
-
M
is
w
ir
e
o
r
shor
t
to
g
as
v
a
lve
w
ir
e
.
2
2
ABNO
R
M
AL
FL
A
M
E
-PRO
V
IN
G
S
IG
N
A
L
Fl
am
e
is
p
ro
v
e
d
w
hile
gas
v
alv
e
is
de
-
ene
rgi
zed.
Indu
cer
w
il
l
ru
n
until
fa
ul
t
is
clear
ed
.
C
heck
fo
r:
-
S
tuck
o
p
e
n
or
leak
yg
as
v
a
lv
e
.
2
3
PRESSURE
S
W
IT
CH
DI
D
N
OT
OPEN
–
Check
fo
r:
-
O
b
str
u
cte
d
p
re
ss
u
re
tub
e
.
-
P
ress
ure
sw
itc
h
st
u
ck
close
d
.
2
4
SECONDAR
Y
V
OLT
A
GE
F
U
SE
IS
OP
EN
Check
fo
r:
-
S
hort
circ
u
it
in
se
con
d
a
ry
v
ol
ta
ge
(2
4V
)
w
iri
ng
incl
udi
n
g
th
e
rm
o
sta
t
le
ads
.
Discon
n
ec
t
th
e
rm
o
stat
lea
ds
to
is
olat
e
shor
t
cir
cuit.
3
2
L
O
W
-HEAT
PRESSURE
S
W
IT
CH
DI
D
NOT
C
LOSE
OR
REOPENED
–
If
o
pe
n
long
er
tha
n
5
m
inut
es,
ind
uce
r
sh
uts
o
ff
for
1
5
m
in
ute
s
b
e
fo
re
re
tr
y.
If
op
ens
duri
ng
bl
o
w
er
on
-d
ela
y
pe
ri
o
d
,
b
lo
w
e
r
w
il
l
com
e
o
n
fo
r
the
sel
e
cte
d
bl
o
w
e
r
off-
d
el
a
y.
Check
fo
r:
-
P
rop
e
r
v
en
t
si
zin
g.
-
A
ir
leak
b
e
tw
e
e
n
v
esti
bul
e
a
n
d
b
lo
w
e
r
com
p
a
rtm
ent
.
-
L
ow
in
le
t
g
as
pr
e
ssu
re
(i
f
L
G
P
S
u
se
d
).
-R
e
st
ri
ct
e
d
v
e
n
t.
-
Discon
n
ec
ted
o
r
o
bstr
uct
e
d
p
re
ssu
re
tubi
ng.
-
D
efec
tive
or
m
is
w
ir
e
d
p
ress
u
re
sw
it
ch
e
s
-
E
xc
essiv
e
w
in
d
.
-
P
lugg
ed
c
o
n
d
e
n
sa
te
drai
n.
-
W
ater
in
ven
t
pi
pi
n
g
,
p
ossi
ble
sag
gin
g
pipe
.
-
D
efec
tive
in
d
u
ce
r
m
ot
or.
-
L
ow
in
du
ce
r
v
o
lt
a
ge
(1
15
V
)
33
L
IM
IT
C
IRCU
IT
F
A
ULT
–
In
d
ica
tes
the
lim
it
or
a
fl
am
e
rol
lout
sw
itc
h
is
op
en
or
the
fur
nac
e
is
o
pe
ra
ting
in
hi
g
h
-h
eat
o
nl
y
m
o
de
due
to
2
su
cc
essi
v
e
lo
w-h
eat
lim
it
tr
ip
s.
Blo
w
e
r
w
ill
ru
n
for
4
m
in
.
o
r
u
n
til
ope
n
sw
it
ch
rem
a
k
e
s
w
hich
eve
r
is
lo
n
g
er.
If
op
e
n
lo
ng
er
th
an
3
m
in
.,
co
de
ch
a
n
ge
s
to
lock
ou
t
#
13.
If
op
en
le
ss
th
an
3
m
in.
statu
s
co
de
#3
3
c
onti
nu
es
to
flash
unti
l
blo
w
e
r
shuts
o
ff
.
Fl
am
e
rol
lout
sw
itc
h
req
u
ir
es
m
a
n
u
al
re
se
t.
C
h
eck
for
:
-
L
o
o
se
b
low
e
r
w
h
ee
l.
-
D
efec
tive
sw
it
ch
o
r
co
nn
ecti
o
n
s.
-
Im
p
ro
per
lo
w
-
o
r
h
ig
h
-h
e
at
gas
in
p
u
t
adjus
tm
ent
.
-
Im
p
ro
per
lim
it
sw
itc
h
o
r
n
o
lim
it
g
a
sk
et.
-
D
ir
ty
fi
lte
r
o
r
res
tr
ic
te
d
d
u
ct
sy
st
e
m.
34
IGN
IT
ION
P
R
OV
IN
G
F
A
ILURE
–
Iffl
a
m
e
is
not
se
n
sed
d
u
rin
g
th
e
tri
al
fo
r
ig
n
it
io
n
peri
od,
th
e
c
ont
rol
w
ill
re
pe
at
th
e
igni
ti
o
n
seq
uen
ce
3
m
or
e
tim
es
be
fo
re
lo
ck
out
#
14
occu
rs.
Iffl
a
m
e
si
gnal
is
los
t
d
uri
n
g
the
b
low
er
o
n
-d
e
lay
pe
ri
o
d
,
b
low
e
r
w
il
l
co
me
on
for
the
sel
e
cte
d
bl
o
w
er
off-
d
el
a
y.
C
h
e
c
k
the
follo
w
ing
item
s
fi
rst
b
ef
or
e
p
roc
e
e
d
in
g
to
th
e
n
e
xt
ste
p.
-G
a
s
v
a
lv
e
tu
rn
e
d
o
ff
.
-
M
an
ual
sh
u
t-
offv
a
lv
e
.
-
G
REEN/
Y
EL
L
O
W
w
ir
e
M
UST
b
e
con
nect
e
d
to
fur
nac
e
she
et
m
e
ta
l.
-
F
la
m
e
se
n
sor
m
u
st
not
be
gr
ou
nd
ed.
T
o
det
e
rm
in
e
w
h
e
ther
th
e
p
ro
bl
em
is
in
the
gas
v
al
ve
,
ig
n
ite
r,
o
r
fl
am
e
sens
or
th
e
sy
stem
c
a
n
b
e
o
p
e
ra
te
d
in
com
p
o
ne
nt
te
st
m
o
d
e
.
T
oc
h
e
ck
th
ei
g
n
it
e
r
re
m
o
v
e
th
e
R
the
rm
o
sta
t
co
nn
ecti
on
fr
om
th
e
con
tr
ol,
re
se
t
pow
er
,
a
nd
pu
t
se
tup
sw
it
ch
S
W
1
-6
in
the
O
N
p
ositi
o
n
to
star
t
th
e
c
om
po
ne
nt
test.
D
o
e
s
th
e
ign
it
er
g
low
or
an
ge
/w
h
it
e
by
th
e
end
of
th
e
1
5
se
con
d
w
arm
-up
pe
riod
?
Unplu
g
ig
ni
te
r
h
ar
ne
ss
fr
om
co
nt
rol
and
rep
e
at
com
p
on
ent
tes
t
b
y
tu
rni
n
g
setu
p
sw
it
ch
S
W
1-6
O
F
F
a
n
d
the
n
b
ack
O
N.
C
h
e
ck
for
11
5
V
b
e
tw
e
en
p
in
3
an
d
NE
UT
RA
L-L
2
o
n
th
e
c
ont
rol
.
W
as
115
V
pres
en
t
fo
r
th
e
1
5
sec
on
d
p
eri
o
d?
Check
co
n
n
e
ctio
ns
and
re
tr
y.
If
cu
rr
ent
is
n
ear
ty
pi
cal
v
alu
e
(4.
0
-6
.0
nom
in
al)
a
n
d
b
u
rn
er
s
w
ill
not
sta
y
o
n
,
rep
eat
ch
eck
in
hig
h
-h
e
a
t.
If
bu
rn
e
rs
w
ill
still
no
t
st
a
y
o
n
repl
ace
cont
rol.
If
bu
rn
ers
o
p
e
ra
te
in
high
-h
eat
th
en
sw
it
ch
to
lo
w
-
hea
t,
c
h
eck
m
anif
o
ld
pres
su
re.
If
O
K
,
c
h
eck
bur
ne
r
ca
rr
yo
v
er
an
d
fl
am
e
sens
or
lo
ca
tion
.
Clean
flam
e
se
nso
r
w
it
h
fin
e
st
e
el
wool
and
re
che
ck
curr
e
n
t.
N
om
inal
cur
re
n
t
is
4
.0t
o6
.0
m
ic
ro
a
m
p
s.
Is
cu
rr
e
n
t
n
e
a
r
ty
p
ic
a
l
v
a
lu
e
?
Repla
ce
e
lect
ro
de.
W
ill
m
a
in
b
u
rn
e
rs
ig
n
ite
a
n
d
st
a
y
on
?
Repla
ce
fur
nac
e
c
ont
rol.
Fi
xe
d.
NO
YE
S
YE
S
YE
S
NO
NO
15
B
L
O
W
E
R
M
O
T
O
R
L
OCK
O
UT
–
Indi
c
at
es
the
b
lo
wer
faile
d
to
reac
h
2
50
R
P
M
o
r
the
b
lo
w
e
r
fa
ile
d
to
com
m
unic
a
te
w
ithi
n
30
seco
nds
a
ft
er
bei
ng
tur
n
e
d
O
N
in
tw
o
succe
ssive
h
e
a
tin
g
c
yc
les.
C
o
n
tr
ol
w
ill
aut
o
-r
ese
t
a
fte
r
3
ho
urs
.
S
e
e
c
od
e
4
1.
45
CONT
ROL
C
IR
CU
IT
R
Y
LOCK
OUT
A
uto
-r
e
set
afte
r
1
ho
ur
lock
out
d
ue
to:
-
F
la
me
ci
rc
u
it
fa
il
u
re
.
-
G
as
v
a
lv
e
rel
a
y
st
uck
ope
n.
-
S
oft
w
a
re
che
ck
err
o
r.
Reset
p
o
w
er
to
cle
a
r
lock
out.
R
epl
ac
e
co
n
tr
ol
if
co
de
re
pe
at
s.
Repla
ce
fur
nac
e
c
ont
rol.
Check
fo
r
co
nti
n
uit
y
in
th
e
har
n
es
s
a
nd
ig
nit
e
r.
R
e
plac
e
def
ective
com
p
on
ent
.
Reco
nn
ect
the
R
th
e
rm
os
tat
lea
d
and
se
t
the
rm
o
sta
t
to
call
for
h
eat.
C
o
n
n
e
ct
vol
tm
e
te
r
a
cr
oss
g
as
valv
e
co
n
n
e
cti
ons
.
Does
gas
v
al
v
e
re
c
e
ive
2
4V
?
Does
gas
v
al
v
e
ope
n
a
n
d
a
llo
w
g
as
to
flo
w
?
Do
th
e
m
ai
n
b
ur
ner
s
ig
n
it
e
?
Do
th
e
m
ai
n
b
ur
ner
s
st
a
y
o
n?
Allow
b
lo
wer
to
com
e
o
n
a
n
d
rep
e
at
tes
t
to
ch
eck
for
in
te
rm
it
te
nt
op
er
a
ti
o
n
.
Check
th
a
t
a
ll
g
a
s
v
alves
a
re
tur
ned
o
n
.
R
epl
ace
v
alv
e
.
Check
co
n
n
e
ctio
ns.
If
O
K
,
repl
ace
co
n
tr
ol.
Check
fo
r:
-
Ina
deq
ua
te
flam
e
c
a
rr
yov
er
o
r
ro
ug
h
ig
n
it
io
n.
-
L
ow
in
le
t
g
as
pr
e
ss
u
re
.
-
P
rop
e
r
fi
ri
n
g
ra
te
.
Repe
at
c
a
ll
fo
r
h
e
a
t
and
ch
eck
fl
am
e
sens
or
c
u
rr
e
n
t
d
uri
n
g
trial
fo
r
ig
n
itio
n
peri
od.
Is
the
D
C
m
ic
roam
ps
bel
o
w
0.5
?
YE
S
YE
S
YE
S
YE
S
YE
S
NO
NO
NO
NO
NO
NO
4
3
L
O
W
-HEAT
PRESSURE
S
W
IT
CH
O
P
EN
W
H
IL
E
H
IG
H-
HEAT
PRESSURE
S
W
IT
C
H
IS
C
L
O
S
E
D
-
C
h
e
ck
fo
r:
-
L
ow
-h
ea
t
p
re
ss
u
re
sw
it
ch
st
uc
k
o
p
e
n
.
-
D
iscon
nec
ted
o
r
o
bstr
uct
e
d
p
re
ssu
re
tub
e
.
-
M
is
w
ire
d
p
re
ss
ur
e
sw
it
c
h
e
s.
-
L
ow
in
le
t
g
as
pr
e
ssu
re
(i
f
L
G
P
S
u
se
d
).
-
P
lugg
ed
c
o
n
d
e
n
sa
te
drai
n.
-
W
ater
in
ven
t
pi
pin
g
,
p
ossi
bl
e
sag
gi
n
g
pipe
.
A11326B
Troubleshooting Guide (Continued)
