U TT
W
SERVI
C
E PRO
C
EDURE
V
I
Blower Temperature Switch Testing
and
R
eplacement
Blower Temperature
S
witch
Replacement.
W
AR
N
I
N
G
11
5
volt potential e
x
posure. Use caution
to avoi
d
personal injur
y
.
S
t
e
p 1.
Position gas control power switch to the “OFF” position
a
nd unplug w
a
t
e
r
h
ea
t
e
r
f
r
om w
a
ll ou
t
l
e
t
.
S
t
e
p
2
.
R
e
mov
e
t
h
e
t
h
r
ee
s
c
r
e
w
s
(Phillip
s s
c
r
e
w d
r
iv
e
r
) f
r
om
t
h
e
con
tr
ol
a
cc
e
ss
cov
e
r
on blow
e
r
a
nd
r
e
mov
e
cov
e
r
(
s
ee
pho
t
o
2
0
a
nd
2
1).
2
1
S
t
e
p 3.
Loc
a
t
e
blow
e
r t
e
mp
e
r
a
t
u
r
e
s
wi
t
ch (
s
ee
pho
t
o 17)
S
t
e
p 4.
Di
s
conn
e
c
t r
e
d
a
nd y
e
llow wi
r
e
l
ea
d
s
f
r
om
s
wi
t
ch.
S
t
e
p 5.
W
i
t
h
a
n
a
pp
r
op
r
i
a
t
e
t
ool
s
uch
a
s s
id
e
cu
tt
e
rs
,
s
nip
t
h
e
r
e
t
a
ining lug f
r
om
t
h
e
blow
e
r
hou
s
ing
t
o
a
llow
r
e
mov
a
l of
t
e
mp
e
r
a
t
u
r
e
s
wi
t
ch (
s
ee
pho
t
o 18).
S
t
e
p 6.
R
e
mov
e
s
wi
t
ch f
r
om blow
e
r
hou
s
ing.
S
t
e
p 7.
In
st
a
ll n
e
w
s
wi
t
ch. B
e
s
u
r
e
s
wi
t
ch i
s
p
r
op
e
r
ly
s
ea
t
e
d in
moun
t
ing
a
r
ea
.
S
t
e
p 8.
R
e
conn
e
c
t r
e
d
a
nd y
e
llow
s
wi
r
e
s t
o n
e
w
s
wi
t
ch.
W
i
r
e
s
a
r
e
in
t
e
r
ch
a
ng
ea
bl
e
wi
t
h
e
i
t
h
e
r t
e
r
min
a
l.
S
t
e
p 9.
Position gas control power switch to the “ON” position
a
nd v
e
r
ify p
r
op
e
r
h
ea
t
e
r
op
e
r
a
t
ion.
S
t
e
p 10.
R
e
pl
a
c
e
con
tr
ol
a
cc
e
ss
cov
e
r
f
r
om
st
e
p
2
.
Blower
temperature
switch
location
22
Snip
retainin
g
lu
g
from
blower
housin
g
23
P
a
g
e
25
Control
Access
Cover
Screws
2
0
Gas
Control
shown
in
the
“OFF”
position
R
25
