3
GB
P
r
oblem
S
c
r
ee
n
d
ispl
a
y
ELC
B
l
a
mp
(i
f an
y)
He
at
i
ng
I
co
n
c
h
ecki
ng a
c
t
io
n
s
1)
M
a
k
e s
u
re the water
p
ress
u
re is
b
i
g
eno
ug
h to
p
ro
v
i
d
e
y
o
u
con
f
orta
b
le water
f
low rate
.
(
f
or water heater witho
u
t
pump
, water tan
k
sho
u
l
d
b
e at least
3
m
eters hi
g
her than
water heater
)
2
)
M
a
k
e s
u
re there are no
d
irt
y
b
loc
k
s the water
f
low,
by
cleanin
g
the
f
ilter, which is
bu
ilt in the water
v
al
v
e
.
3)
M
a
k
e s
u
re there are no
d
irt
y
b
loc
k
s the nozzles o
f
shower hea
d.
4
)
M
a
k
e s
u
re there are no
b
ottle nec
k
Between the water
inlet
p
i
p
e an
d
the
m
ain water s
upp
lier
p
oint;
Trian
g
le icon
b
lin
k
in
g
/
/
/
1)
C
hec
k
i
f
inlet te
mp
hi
g
her than settin
g
te
mp.
ho
u
se li
g
ht
f
ric
k
erin
g
when heatin
g
ON
ON
ON
1)
M
eas
u
rin
g
the act
u
al
v
olta
g
e WHEN heatin
g
to
m
a
k
e
s
u
re
v
olta
g
e
d
ro
p
not too
b
i
g.
(
v
olta
g
e
d
ro
p
sho
u
l
d
b
e less
than
1
0%
).
B
y
increasin
g
sectional area o
f
, or re
du
cin
g
len
g
th o
f
the
p
ower s
upp
l
y
ca
b
le co
u
l
d
sol
v
e the
f
lic
k
erin
g
p
ro
b
le
m.
Flow rate too
s
m
all
/
/
/