89
2
1
G
A
S
H
EATI
N
G
LO
C
K
O
U
T
–
Tu
rn
of
f
p
o
we
r
a
n
d
wa
it
5
m
in
u
te
s
to
re
tr
y.
C
h
e
c
k
for:
-
S
tuck
cl
ose
d
g
a
s
v
alve
rel
a
y
o
n
c
on
tr
ol.
-
M
is
w
ir
e
o
r
s
h
or
t
to
g
as
v
a
lve
w
ir
e
.
2
2
A
B
N
O
RM
A
L
F
L
AM
E-
P
R
O
V
IN
G
S
IG
NA
L
Flam
e
is
p
ro
v
e
d
w
hile
gas
v
alv
e
is
de
-
ene
rgi
zed.
Indu
cer
w
ill
ru
n
u
ntil
fa
ult
is
c
le
a
re
d.
C
h
e
c
k
for
:
-
S
tuck
o
p
e
n
or
le
ak
yg
as
v
a
lv
e
.
2
3
PRESSURE
S
W
IT
CH
DI
D
N
O
T
O
P
EN
–
Check
fo
r:
-
O
bst
ruct
e
d
p
re
ss
ur
e
tu
b
e.
-
P
re
ss
ure
s
w
itc
h
s
tu
ck
close
d
.
24
S
E
CONDA
R
Y
V
OLT
A
GE
FUS
E
IS
OP
E
N
Check
fo
r:
-
S
hort
ci
rc
uit
in
s
e
c
on
da
ry
v
o
lta
g
e
(2
4
V
)
w
iri
ng
in
cl
udi
n
g
the
rm
osta
t
le
a
ds
.
D
is
c
o
nn
e
c
t
the
rm
os
ta
t
le
a
d
s
to
is
o
la
te
shor
t
c
ir
cuit.
3
2
L
O
W
-HEAT
PRESSURE
S
W
IT
CH
DI
D
NO
T
C
L
O
SE
O
R
REO
P
ENED
–
If
o
p
e
n
long
er
tha
n
5
m
in
ut
es,
ind
uce
r
s
h
uts
o
ff
for
1
5
m
in
ute
s
b
e
fo
re
re
tr
y
.
If
op
ens
duri
ng
blo
w
er
on
-d
ela
y
pe
rio
d
,
b
lo
w
e
r
w
ill
com
e
o
n
fo
r
the
sel
e
cte
d
bl
o
w
e
r
off-
del
a
y
.
Check
fo
r:
-P
ro
p
e
r
v
e
n
t
s
iz
in
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
s
su
re
(i
f
L
G
P
S
u
se
d
).
-R
e
s
tr
ic
te
d
v
e
n
t.
-
D
iscon
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
s
w
it
ch
e
s
-E
x
c
e
s
s
iv
e
w
in
d
.
-
P
lu
gg
ed
c
o
n
d
e
n
sa
te
drai
n.
-
W
ater
in
ven
t
pi
pin
g
,
p
ossi
ble
s
ag
gi
n
g
pipe
.
-
D
efec
tive
in
d
u
ce
r
m
ot
or.
-
L
ow
in
du
c
e
r
v
o
lt
a
ge
(1
15
V
)
33
L
IM
IT
C
IRCU
IT
F
A
ULT
–
In
dica
tes
th
e
lim
it
o
r
a
flam
e
roll
o
ut
s
w
it
c
h
is
op
en
or
the
fur
n
ac
e
is
o
pe
ra
ting
in
hig
h
-h
eat
o
nl
y
m
o
de
due
to
2
s
u
cc
essiv
e
lo
w-
h
e
at
lim
it
tr
ips.
Blo
w
er
w
ill
ru
n
for
4
m
in.
o
r
u
n
til
o
p
en
sw
it
c
h
re
ma
ke
s
w
h
ic
h
e
v
er
is
lo
nge
r.
If
op
e
n
lo
ng
er
th
an
3
m
in
.,
co
de
c
h
a
nge
s
to
lo
ck
ou
t
#
13.
If
o
p
e
n
less
th
a
n
3
m
in.
statu
s
co
de
#3
3
c
onti
nu
es
to
fl
ash
u
ntil
b
low
er
sh
u
ts
o
ff
.
F
la
me
ro
ll
o
u
t
s
w
it
c
h
re
qu
ir
e
s
ma
nu
a
l
re
s
e
t.
C
h
e
c
k
fo
r:
-
L
oo
se
blo
w
er
whe
e
l.
-
D
efec
tive
s
w
itch
o
r
co
nn
ectio
n
s.
-
Im
p
ro
per
lo
w
-
o
r
h
ig
h
-h
e
at
gas
inp
ut
adjus
tm
e
nt
.
-
Im
p
ro
pe
r
lim
it
s
w
itc
h
o
r
n
o
lim
it
g
a
sk
et.
-
D
irt
y
filt
er
or
re
str
ic
te
d
d
u
ct
s
y
stem
.
34
IGN
IT
ION
P
R
OV
IN
G
F
A
IL
URE
–
If
fla
m
e
is
not
s
en
sed
d
urin
g
the
trial
fo
r
ig
nitio
n
p
e
ri
o
d
,
the
co
n
tr
o
l
w
ill
rep
ea
t
th
e
ig
n
it
ion
seq
u
en
ce
3
m
or
e
tim
es
be
fo
re
lo
ck
out
#
14
occu
rs.
If
fl
a
m
e
si
gnal
is
los
t
d
u
ri
ng
th
e
b
low
er
o
n
-d
e
lay
pe
ri
o
d
,
b
lo
w
e
r
w
ill
c
o
m
e
o
n
for
the
sel
e
cte
d
blo
w
er
off-
del
a
y
.
Ch
ec
k
the
follo
w
ing
item
s
fi
rst
bef
o
re
p
roc
ee
di
ng
to
th
e
n
e
x
t
s
te
p.
-
G
as
v
a
lve
tu
rn
e
d
o
ff.
-
M
an
ual
s
h
u
t-
off
v
alve
.
-
G
REEN/
Y
EL
L
O
W
w
ir
e
M
UST
b
e
con
n
ect
e
d
to
fur
nac
e
s
h
e
e
t
m
et
al
.
-
F
la
me
s
e
ns
o
r
mu
s
t
n
o
t
b
e
g
ro
un
de
d
.
T
o
d
e
te
rm
in
e
w
he
th
e
r
th
e
p
ro
b
le
m
is
in
th
e
g
a
s
v
a
lv
e
,
ign
it
er
,
o
r
fl
a
me
se
n
s
o
r
th
e
sy
s
te
m
ca
n
b
e
o
pe
ra
te
d
in
c
o
m
po
n
e
n
t
te
s
t
mo
d
e
.
T
o
c
he
c
k
th
e
ign
it
er
re
mo
v
e
th
e
R
the
rm
o
sta
t
co
nn
ecti
on
fr
om
th
e
c
on
tr
ol,
re
s
e
t
p
ow
er
,
a
nd
pu
t
s
e
tup
sw
it
c
h
S
W
1
-6
in
the
O
N
p
ositi
o
n
to
s
tar
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
e
n
d
o
f
the
15
s
e
c
o
nd
w
a
rm-u
p
p
er
io
d?
U
n
pl
u
g
ig
ni
te
r
h
ar
ne
ss
fr
om
co
nt
rol
a
nd
rep
e
at
com
p
on
ent
tes
t
b
y
tu
rni
n
g
s
e
tu
p
sw
it
ch
S
W
1-6
O
F
F
a
n
d
the
n
b
ack
O
N.
C
h
eck
fo
r
1
1
5V
bet
w
ee
n
p
in
3
a
nd
NEUT
RAL-
L
2
o
n
th
e
c
ont
rol
.
W
a
s
11
5
V
pres
en
t
fo
r
th
e
1
5
s
ec
on
d
p
eri
o
d?
C
heck
c
o
n
n
e
cti
o
ns
and
re
tr
y
.
If
cu
rr
ent
is
n
ear
ty
pi
cal
v
al
u
e
(4.
0
-6
.0
nom
in
a
l)
an
d
b
urn
e
rs
w
ill
not
sta
y
o
n
,
rep
eat
ch
eck
in
hig
h
-h
e
a
t.
If
bur
n
e
rs
w
ill
still
n
o
t
st
a
y
o
n
re
pl
ace
cont
rol.
If
bu
rn
ers
o
p
e
ra
te
in
hi
gh
-h
eat
th
e
n
s
w
itch
to
lo
w
-
hea
t,
c
h
eck
m
ani
fo
ld
pres
su
re.
If
O
K
,
c
heck
bur
ne
r
c
a
rr
y
o
v
er
an
d
fl
a
m
e
sens
or
lo
ca
ti
on
.
C
lean
fl
a
m
e
se
nso
r
w
it
h
fin
e
st
eel
w
ool
and
re
c
he
ck
curr
en
t.
N
o
m
inal
c
ur
re
nt
is
4
.0
to
6
.0
mi
c
roa
mp
s
.
Is
cu
rre
nt
ne
ar
ty
pi
c
a
l
v
al
ue
?
R
epl
a
c
e
e
le
ct
ro
de.
W
ill
ma
in
b
u
rn
e
rs
ign
it
e
a
nd
s
tay
o
n
?
R
epl
a
c
e
fur
nac
e
c
ont
rol
.
Fi
x
e
d.
NO
YE
S
YE
S
YE
S
NO
NO
1
5
BL
O
W
ER
M
O
TO
R
L
O
C
K
O
UT
–
In
d
ic
a
te
s
the
b
lo
we
r
faile
d
to
rea
c
h
2
5
0
R
P
M
o
r
th
e
b
low
er
fa
ile
d
to
c
o
mmu
n
ica
te
w
it
h
in
3
0
seco
nds
a
ft
er
bei
n
g
tur
ne
d
O
N
in
tw
o
succe
ssive
he
atin
g
c
y
c
les.
Co
ntr
o
l
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
IRCU
IT
R
Y
LOC
K
OU
T
A
uto
-r
e
set
afte
r
1
ho
ur
lock
out
d
u
e
to:
-
F
la
m
e
ci
rcui
t
fail
u
re
.
-
G
as
v
a
lv
e
rel
a
y
s
tuck
ope
n.
-
S
oft
w
a
re
c
he
ck
err
o
r.
R
e
s
e
t
p
ow
e
r
to
c
lea
r
lock
out.
R
epl
a
c
e
co
ntr
o
l
if
c
o
de
re
pe
at
s
.
R
epl
a
c
e
fur
nac
e
c
ont
rol
.
C
heck
fo
r
co
nti
n
uit
y
in
th
e
har
nes
s
a
n
d
ignit
er.
R
e
p
lac
e
def
ecti
ve
com
p
on
ent
.
Reco
nn
ect
the
R
th
e
rm
os
tat
lea
d
a
nd
s
e
t
th
er
mo
s
tat
to
c
a
ll
fo
r
h
e
a
t.
C
o
n
n
e
c
t
voltm
e
te
r
a
cr
oss
g
as
valv
e
c
o
n
n
e
cti
o
ns
.
D
o
e
s
g
a
s
v
a
lve
re
ce
iv
e
2
4
V
?
D
o
e
s
g
a
s
v
a
lve
o
p
en
an
d
a
llow
ga
s
to
flo
w
?
Do
th
e
m
ai
n
b
ur
ner
s
ig
nite
?
Do
th
e
m
ai
n
b
ur
ner
s
st
a
y
o
n
?
A
llo
w
b
lo
w
e
rt
oc
o
m
eo
na
n
d
rep
e
at
tes
t
to
ch
eck
for
in
te
rm
it
te
nt
op
er
a
ti
o
n
.
C
heck
th
a
t
a
ll
g
a
s
v
al
ves
a
re
tur
ned
o
n
.
R
epl
a
ce
val
v
e.
C
heck
c
o
n
n
e
cti
o
ns.
If
O
K
,
repl
ace
c
o
n
tr
ol.
C
heck
fo
r:
-
Ina
deq
ua
te
fl
am
e
c
ar
ry
ov
er
or
rou
g
h
igni
tion
.
-
L
ow
in
le
t
g
as
pr
e
s
su
re
.
-
P
ro
pe
r
fi
ri
n
g
ra
te.
Repe
at
c
a
ll
fo
r
h
e
a
t
a
nd
ch
eck
fl
a
m
e
sens
or
c
u
rr
e
n
t
d
uri
n
g
trial
fo
r
ig
n
iti
o
n
peri
od.
Is
the
D
C
m
icr
oam
p
s
b
el
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
ITCH
O
PEN
W
H
IL
E
H
IGH-
HEAT
PRESSURE
S
W
IT
C
H
IS
C
L
O
S
E
D
-
C
h
e
c
k
fo
r:
-
L
ow
-h
ea
t
p
re
s
s
ur
e
s
w
it
c
h
s
tu
c
k
o
p
en
.
-
Discon
n
ec
ted
o
r
o
bstr
uct
e
d
p
re
ssu
re
tub
e
.
-
M
is
w
ir
e
dp
re
s
s
u
res
w
it
c
h
e
s
.
-
L
ow
in
le
t
g
as
pr
e
s
su
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
s
ag
gin
g
pi
pe
.
2
5
IN
V
A
L
ID
M
O
D
E
L
S
E
L
E
C
T
IO
N
O
R
SET
U
P
E
RROR
–
If
st
atu
s
co
de
25
onl
y
fl
a
s
he
s
4
ti
me
s
o
n
p
ow
e
r-
u
p
the
co
n
tr
o
l
is
m
issi
ng
its
m
odel
plu
g
P
L
4
a
nd
is
d
e
fa
u
lt
in
g
to
th
e
m
od
e
l
s
e
le
c
ti
o
n
s
to
re
d
in
me
mo
ry
.
If
s
ta
tu
s
c
od
e
2
5
fl
a
s
h
e
s
c
o
n
tin
u
o
u
s
ly
it
co
u
ld
in
d
ic
a
te
a
n
y
o
f
th
e
follo
w
in
g
:
-
M
od
el
plug
P
L
4
is
m
issin
g
a
n
d
th
e
re
is
no
v
a
lid
m
o
del
s
to
re
d
in
p
e
rm
a
n
e
nt
me
mo
ry
.
T
h
is
w
ill
h
a
p
p
e
n
if
y
ou
fo
rg
et
to
in
s
tall
the
m
o
del
plu
g
P
L
4
o
n
a
servic
e
repl
a
cem
e
nt
c
o
nt
rol
.
-
T
herm
ost
a
t
c
al
l
w
it
h
S
W
1
-1
ON
.
-
T
herm
ost
a
t
c
al
l
w
it
h
S
W
1
-6
ON
.
-S
W
1
-1
a
n
d
S
W
1
-6
b
o
th
O
N
.
-
T
w
o
di
ff
er
ent
fur
na
ce
m
o
dels
tw
in
ne
d.
-
S
ervic
e
re
pla
c
em
e
n
t
c
ont
rol
is
inc
o
rr
ect
.
N
e
e
d
no
n
-mod
u
la
ti
ng
bo
ar
d
w
it
h
soft
ware
ve
rs
io
n
V
1
7
o
r
la
te
r.
3
1
HI
G
H
-H
EAT
P
RESSURE
S
W
IT
CH
O
R
RE
LA
Y
D
ID
N
O
T
C
LOS
E
OR
REOPENED
-
C
heck
fo
r:
-
C
ont
rol
rel
a
y
m
a
y
be
de
fecti
v
e.
-
G
a
s
v
a
lve
is
m
is
w
ir
e
d
.
-
S
ee
st
atu
s
co
de
32
.
A113325B
Troubleshooting Guide (Continued)
59TP6A
