3
7
1
2
0
vo
l
t
potentia
l
exposure
. I
so
l
ate
the
app
l
iance
and
recon
f
irm
po
w
er
is
disconnected
using
a
mu
l
ti
-
meter
.
WAR
NIN
G
Ser
vi
ce
Proce
du
re
X
I
:
Displa
y
Mo
dul
e
Re
pla
ce
m
e
nt
Displa
y
Mo
dul
e
Re
pla
ce
m
e
nt
S
tep
1
.
P
osition
main
po
w
er
s
w
itch
to
“
O
FF
”
S
tep
2.
Disconnect
(
unp
l
ug
)
w
ater
heater
f
rom
1
2
0
vo
l
t
po
w
er
source
.
S
tep
3
.
R
emove
f
our
scre
w
s
that
ho
l
d
the
disp
l
ay
into
the
enc
l
osure
(
sho
w
n
on
the
right
)
.
S
tep
4.
A
f
ter
removing
the
scre
w
pu
ll
the
disp
l
ay
out
o
f
the
enc
l
osure
.
S
tep
5
.
O
nce
the
disp
l
ay
is
removed
disconnect
the
t
w
o
mating
p
l
ugs
.
S
tep
6
.
C
onnect
in
ne
w
disp
l
ay
and
rep
l
ace
into
the
enc
l
osure
.
S
tep
7
.
Use
the
f
our
scre
w
s
f
rom
step
3
and
reinsta
ll
the
disp
l
ay
onto
the
enc
l
osure
.
S
tep
8
.
R
estore
1
2
0
vo
l
t
po
w
er
supp
l
y
to
w
ater
heater
and
con
f
irm
proper
operation
f
o
ll
o
w
ing
the
l
ighting
instructions
on
the
l
ighting
instruction
l
abe
l
or
the
l
ighting
instruction
l
ocated
in
the
insta
ll
ation
and
operating
instruction
manua
l.
Disp
l
ay
and
Enc
l
osure
Disconnect
37