91
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
conti
n
u
o
usl
y
it
c
o
uld
indi
c
at
e
a
n
y
of
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
p
lu
g
P
L
4
on
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
.
Need
m
o
d
u
lati
ng
bo
ar
d
w
ith
s
o
ft
w
a
re
v
e
rs
io
n
V
1
7
o
r
la
te
r.
3
1
M
E
D
IU
M
PRESSURE
S
W
IT
CH,
H
IG
H
PRESSURE
S
W
IT
CH,
O
R
PSR
R
EL
A
Y
DI
D
N
OT
C
L
OS
E
O
R
R
E
O
P
E
NE
D
-
Check
fo
r:
-
P
S
R
rel
a
y
m
a
y
be
def
e
ctiv
e.
-
S
ee
st
atu
s
co
de
32
.
4
1
BL
O
W
ER
M
O
TO
R
F
AUL
T
–
In
d
ic
a
te
s
th
e
b
low
er
fa
ile
d
to
rea
ch
25
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
th
e
pres
crib
ed
tim
e
lim
its.
T
h
irt
y
sec
o
n
d
s
afte
r
b
ein
g
tu
rn
ed
ON
or
ten
s
ec
on
ds
duri
ng
ste
a
d
y
-s
ta
te
op
er
atio
n.
T
u
rn
po
w
e
r
off
a
nd
ch
eck
the
foll
o
w
in
g
item
s
first
bef
o
re
pr
oc
eedi
ng
to
the
n
e
x
t
s
tep
.
-
R
ubbi
ng
bl
o
w
er
w
h
eel.
-
L
oo
se
blo
w
er
whe
e
l.
-
W
ir
ing
fr
o
m
fur
n
a
ce
c
o
nt
ro
l
to
b
lo
wer
mo
to
r.
Rem
o
ve
th
e
R
th
e
rm
o
sta
t
co
nn
ecti
on
fr
om
the
fur
nac
e
c
o
nt
rol
,
disc
on
nec
t
b
o
th
con
n
ect
o
rs
fr
om
th
e
b
lo
w
e
r
m
ot
or
P
L
13
and
P
L1
4.
D
o
e
s
th
e
b
lo
wer
w
he
el
tu
rn
fre
e
ly
?
R
e
pla
c
e
the
bl
o
w
er
co
ntr
o
l
m
od
ule
a
tt
a
c
he
d
to
th
e
b
lo
w
e
r
m
o
to
r.
F
o
llo
w
th
e
in
s
tr
u
c
tio
n
s
w
ith
the
b
lo
wer
c
on
tr
ol
m
o
d
u
le
to
m
a
k
e
s
u
re
th
e
entir
e
blo
w
er
m
o
to
r
d
o
e
s
n
ot
ne
ed
to
b
e
repl
ace
d
.
T
u
rn
po
w
e
r
b
ack
o
n.
Is
th
er
e
1
15V
A
C
at
PL
1
4
-5
a
n
d
P
L
1
4
-4
?
Y
o
uh
a
v
ea
no
p
e
n
w
ir
eo
rb
a
d
term
in
al
o
n
ei
th
e
r
th
e
B
LA
C
K
o
r
W
H
IT
E
p
ow
er
le
a
d
s
b
et
w
e
en
the
fur
nac
e
c
o
nt
rol
a
n
d
th
e
blo
w
e
r
m
o
to
r.
If
y
o
u
h
ave
a
po
w
e
r
c
hok
e
d
is
co
nn
ect
it
a
n
d
c
h
e
c
k
c
on
ti
nu
it
y
.
YE
S
YE
S
NO
NO
Is
th
er
e
1
2-V
D
C
a
t
P
L1
3-1
R
E
D
(+
)
a
n
d
P
L
13
-4
GR
E
E
N
(-)
?
YE
S
NO
Is
th
er
e
1
2-V
D
C
a
t
P
L3
-1
R
E
D
(+
)
a
n
d
P
L
3-
2
G
R
E
E
N
(-
)?
Repl
a
c
e
the
fu
rn
ace
c
on
trol
.
NO
Y
o
uh
a
v
ea
no
p
e
n
w
ir
eo
rb
a
d
term
in
al
o
n
ei
th
e
r
th
e
R
E
D
or
GRE
E
N
w
ir
e
b
et
ween
th
e
fur
nac
e
c
o
n
tr
ol
and
th
e
b
lo
w
e
r
mo
to
r.
YE
S
Is
th
er
e
5
-V
D
C
a
t
P
L
13
-2
Y
E
L
L
O
W
(+
)
and
P
L1
3-
4
G
R
E
E
N
(-
)?
Is
th
er
e
5
-V
D
C
a
t
P
L
3-
3
Y
E
LL
O
W
(+
)
a
nd
P
L
3
-2
GRE
E
N
(-)?
NO
NO
Y
o
uh
a
v
ea
no
p
e
n
w
ir
eo
rb
a
d
term
in
al
o
n
th
e
Y
E
L
LO
W
w
ire
b
e
tw
e
e
n
the
fu
rn
a
c
e
c
on
tr
o
l
a
n
d
the
b
lo
wer
m
o
tor
.
YE
S
YE
S
T
h
e
v
ol
tag
e
ju
st
m
e
asu
red
sh
oul
d
b
e
ver
y
sta
b
le
an
d
s
h
o
ul
d
n
ot
fl
uct
u
at
e
m
o
re
tha
n
.0
2-V
D
C
.
If
th
e
v
olta
ge
fluct
u
at
es
mo
re
th
an
th
is
ge
t
a
d
iff
er
e
n
t
v
o
lt
m
e
ter
bef
o
re
pr
oc
eedi
n
g
.
T
u
rn
po
w
e
r
o
ff,
disc
on
nect
P
L
1
3
and
P
L
14
fr
om
the
b
lo
wer
m
oto
r,
the
n
tur
n
po
w
e
r
b
ack
o
n
.
C
o
n
n
ect
a
DC
voltm
e
te
r
acro
ss
P
L
13
-3
B
L
U
E
(+
)
a
nd
P
L
1
3
-4
GRE
E
N
(-).
T
he
v
o
lt
age
sh
oul
d
b
e
n
e
a
r
0-V
D
C
b
ut
it
w
ill
fl
uct
uat
e
b
ri
efl
y
se
ver
a
l
tim
e
s
a
s
e
co
nd
.
If
y
o
u
h
a
ve
an
a
n
alo
g
vo
ltm
e
te
r
the
n
e
ed
le
w
ill
b
rie
fl
y
g
o
h
ig
h
seve
ral
ti
m
e
s
a
s
ec
on
d.
If
y
o
u
h
av
e
a
d
ig
it
a
l
v
o
lt
m
et
er
w
it
h
a
b
ar
gr
ap
h
it
w
ill
sho
w
a
la
rg
e
c
h
an
ge
in
m
a
gnit
ud
e
o
n
the
bar
g
ra
p
h
s
e
ve
ral
tim
e
s
a
s
ec
on
d.
If
y
o
u
hav
e
a
s
ta
nd
ard
d
ig
it
al
v
o
lt
m
e
te
r
it
w
ill
s
h
ow
a
b
ri
ef
fl
uc
tu
a
ti
o
n
in
v
o
lta
ge
an
d
th
e
m
a
gnit
ude
m
a
y
v
a
ry
de
pe
ndi
n
g
o
n
the
voltm
e
te
r
u
se
d.
D
o
es
the
v
olt
a
g
e
fl
uctu
at
e
a
s
d
e
scri
b
e
d
in
th
e
previ
o
u
s
st
ep?
Conn
ect
a
DC
voltm
e
te
r
a
c
ros
s
P
L
3
-4
BLUE
(+
)
a
n
d
PL
3
-2
G
REEN
(-
).
D
o
e
s
th
e
v
o
lt
a
g
e
fluctu
at
e
a
s
d
e
scri
b
e
d
tw
o
s
te
ps
back
?
Y
o
u
h
av
e
a
n
o
pe
n
w
ir
e
o
r
b
ad
te
rm
inal
on
th
e
B
L
U
E
w
ire
be
tw
ee
n
the
fu
rn
a
c
e
c
on
tr
o
l
a
n
d
the
blo
w
e
r
m
o
to
r.
NO
R
e
pla
c
e
the
fu
rn
ace
c
on
trol
.
YE
S
Tu
rn
p
o
w
e
r
o
ff
,
re
c
o
nn
ec
t
P
L1
3
a
nd
P
L
14
to
the
b
lo
wer
m
oto
r,
the
n
turn
po
w
e
r
b
ack
o
n
.
C
o
n
n
ect
a
DC
voltm
e
te
r
a
c
ro
s
s
PL
3
-3
Y
EL
L
O
W
(+)
a
n
d
P
L
3
-2
GREEN
(-
).
D
o
e
s
the
v
o
lt
age
fluc
tua
te
m
o
re
th
a
n
it
did
in
the
pr
evi
o
us
st
ep
?
NO
YE
S
YE
S
NO
R
e
pla
c
e
the
bl
o
w
er
co
ntr
o
l
m
od
ule
a
tt
a
c
he
d
to
th
e
b
lo
w
e
r
m
o
to
r.
F
o
llo
w
th
e
in
s
tr
u
c
tio
n
s
w
ith
the
b
lo
wer
c
on
tr
ol
m
o
d
u
le
to
m
a
k
e
s
u
re
th
e
entir
e
blo
w
er
m
o
to
r
d
o
e
s
n
ot
ne
ed
to
b
e
repl
ace
d
.
42
IN
D
UCE
R
M
OT
OR
FA
ULT
–
Indic
a
tes
the
in
d
u
ce
r
m
o
tor
ha
s
n
o
t
s
tar
te
d
w
it
h
in
2
0
seco
nds
a
ft
er
a
c
all
fo
r
hea
t,
the
in
d
u
ce
r
m
o
tor
R
P
M
is
ou
tsid
e
its
valid
ra
n
g
e
o
f
o
p
er
a
ti
o
n
,
or
th
e
ind
uc
e
r
R
P
M
s
ig
na
l
w
a
s
lost
fo
r
5
s
e
co
nds
d
u
rin
g
o
pe
rati
on.
Check
fo
r:
-
P
rop
e
r
v
en
t
s
iz
in
g.
-F
a
ile
d
in
d
u
c
e
r
m
o
to
r.
-
R
estri
c
te
d
c
om
b
u
sti
o
n
a
ir
sup
p
ly
.
-
Im
p
ro
per
m
oto
r
w
iri
ng
.
3
5
G
A
S
VAL
VE
F
A
U
L
T
–
In
d
ica
te
s
th
e
m
odula
ting
ga
s
v
al
ve
fa
ile
d
to
re
sp
on
d
to
a
c
om
m
a
n
d
fr
om
th
e
fur
nac
e
c
o
nt
rol
o
r
po
w
e
r
to
the
gas
v
alv
e
el
ect
roni
c
s
w
as
inter
ru
p
te
d.
C
h
eck
for:
-
Inte
rm
itte
nt
RED,
Y
E
LL
O
W
,
o
r
ORA
N
GE
w
ire
at
gas
v
alv
e
o
r
P
L
8
con
n
ecti
ons
.
A11290C
59MN
7A
