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
1
00
Versi
o
n 2.0
5.15. 30Error
Error occurrence conditions and check items.
Description Error
30E
Exhaust gas
temperature
error
Check items
If
t
h
e
o
ver
h
eat
co
ntr
oll
er
o
n t
h
e t
op of
t
h
e e
xh
aust
d
u
c
t
op
erates
,
t
h
e s
y
ste
m
d
is
pl
a
y
s t
h
e
h
eat e
xch
an
g
er
b
i
m
eta
l o
ver
h
eat
m
essa
g
e
3
0
E (cl
eare
d m
anua
lly)
o
t
h
e r
oom co
ntr
oll
er an
d
t
h
e
PCB
.
(O
ver
h
eat
co
ntr
oll
er
op
eratin
g
te
mp
erature
: 149 ȕ )
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
.
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
o
ver
h
eat
co
ntr
oll
er
op
erates n
o
r
m
a
lly
.
2.
Ch
e
c
k i
f
t
h
e
PCB wo
rks
p
r
op
er
ly
.