Navien NP-180, Руководство по обслуживанию

Страница: 67 / 179

©N
avien
Am
eri
c
a
I
n
c
. 20
1
0
NR/NP
series servi
c
e Manua
l
65
Versi
o
n 2.0
5.2. 01Error
Error occurrence conditions and check items
Description Error
01E
Boiling
Check items
I
n
o
r
d
er t
o p
revent
bo
i
l
in
g of
t
h
e
h
eat e
xch
an
g
er
,
i
f
20
8 ȕ (98 Ȕ )o
r
h
i
gh
er is sense
d
at t
h
e
o
ut
p
ut
of
t
h
e
h
eat te
mp
erature
(o
r
194
ȕ
(9
0
Ȕ
)
at t
h
e in
p
ut
of
t
h
e
h
eat
e
xch
an
g
er
) fo
r
o
ver
15
se
co
n
d
s
,
t
h
e s
y
ste
m
st
op
s
comb
usti
o
n.
(I
n n
o
r
m
a
l co
n
d
iti
o
n
,
t
h
e
comb
usti
o
n is st
opp
e
d by
t
h
e
o
ut
p
ut te
mp
erature
of
t
h
e
h
eat e
xch
an
g
er.
) If
o
ver
h
eat is
d
ete
c
te
d
as t
h
e
comb
usti
o
n is st
opp
e
d,
t
h
e s
y
ste
m d
is
pl
a
y
s an err
o
r
m
essa
g
e
,
an
d do
es n
o
t start
comb
usti
o
n unti
l
t
h
e te
mp
erature
go
es
b
e
low 185
ȕ
(85
Ȕ
) (o
r
176
ȕ
(8
0
Ȕ
)
at t
h
e in
p
ut
of
t
h
e
h
eat e
xch
an
g
er
)
.
(Th e err o r m e ss a g e “O1E” i s c l eare d m anua lly fo r th e mod e ls b e fo re 324-5 M .)
Is the hot water thermistor
normal?
Yes
No
Check unit
Replace hot water thermistor
Resistance between two red wires of CN 13 is from
0.8 to 20k ohm at normal condition.
Caution: Before measuring resistance of the thermistor,
remove the connector from the PCB.
1
.
Ch
e
c
k i
f
t
h
e
m
ain
h
eat e
xch
an
g
er is
clogg
e
d
.
2.
Ch
e
c
k t
h
e
ho
t
w
ater
o
ut
p
ut
/
in
p
ut te
mp
erature sens
o
r.
3
.
Ch
e
c
k t
h
e
co
ntr
oll
er
DIP
S
/
W
c
a
p
a
c
it
y
settin
g
.
4
.
Ch
e
c
k i
f
t
h
e
co
ntr
oll
er
wo
rks
p
r
op
er
ly
.