Navien NP-180, Руководство по обслуживанию

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©N
avien
Am
eri
c
a
I
n
c
. 20
1
0
NR/NP
series servi
c
e Manua
l
9
2
Versi
o
n 2.0
5.11. 16Error
Error occurrence conditions and check items.
Description Error
16E
Bimetal
overheated
Check items
If
t
h
e
o
ver
h
eat
co
ntr
oll
er
o
n t
h
e
h
eat e
xch
an
g
er
op
erates
d
urin
g comb
usti
o
n
st
op of
t
h
e
bo
i
l
er
,
t
h
e s
y
ste
m d
is
pl
a
y
s t
h
e
16E (m
anua
lly cl
eare
d) m
essa
g
e
o
n t
h
e
re
mo
te
co
ntr
oll
er an
d
t
h
e
PCB
.
Th
e
bo
i
l
er s
w
it
ch
es int
o Loc
k
-O
ut
,
an
d p
er
fo
r
m
s
po
st
p
ur
g
e
co
ntinu
o
us
ly
an
d op
erates t
h
e
p
u
mp
.
If
t
h
e
o
ver
h
eat sens
o
r si
g
na
l
is
d
ete
c
te
d w
it
h
in
1
0
m
in a
f
ter t
h
e
comb
usti
o
n is
st
opp
e
d,
n
o
err
o
r is
d
is
pl
a
y
e
d,
an
d
t
h
e s
y
ste
m do
es n
o
t start
comb
usti
o
n unti
l
t
h
e
o
ver
h
eat sens
o
r is returne
d
t
o
n
o
r
m
a
l
.
Is HTL* normally operation?
Yes
No
Replace PCB
Replaace HTL
Check the resistance betweenteo white wires of CN 13:
short-circuit(016E)
Check the resistance betweenteo white wires of CN 13:
short-circuit(030E)
Caution: Measuning should be done at leat 30 minutes
after error.
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 i
f
t
h
e
o
ver
h
eat
co
ntr
oll
er
wo
rks
p
r
op
er
ly
.
3
.
Ch
e
c
k t
h
e
ho
t
w
ater
o
ut
p
ut
/
in
p
ut te
mp
erature sens
o
r.
4
.
Ch
e
c
k t
h
e
PCB DIP
S
/
W
c
a
p
a
c
it
y
settin
g
.
5
.
Ch
e
c
k i
f
t
h
e
PCB wo
rks
p
r
op
er
ly
.