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
83
Versi
o
n 2.0
Check method
Check method Cause Error type
Blow
er a
c
ti
o
n
err
o
r
Blow
er
RP
M
err
o
r
No blow
er a
c
ti
o
n
D
e
f
e
c
tive r
o
tat
o
r
1
.
Ch
e
c
k t
h
e
pow
er su
pply
t
o
t
h
e
blow
er.
Bl
a
c
k
+R
e
d,
a
pp
r
ox
.
DC 1
2
7~184
V
2.
R
e
pl
a
c
e t
h
e
PCB
i
f pow
er is n
o
t su
ppl
ie
d
n
o
r
m
a
lly
.
3
.
If
t
h
e tr
o
u
bl
e
co
ntinues
d
es
p
ite t
h
e
ch
e
c
kin
g of
a
bo
ve ite
m
s
,
re
pl
a
c
e t
h
e
blow
er.
1
.
If RP
M is si
g
ni
fic
ant
ly low wh
i
l
e t
h
e
blow
er
wo
rks an
d
t
h
e
pow
er
su
pply
is n
o
r
m
a
l,
re
pl
a
c
e t
h
e
blow
er.
2.
Ch
e
c
k t
h
e
blow
er
RP
M
d
is
pl
a
y
e
d o
n t
h
e
PCB
.
(D
is
pl
a
y:
r
3
20
ȥ 3
200
RP
M
)
3
.
If RP
M is
low o
r t
h
ere is a sens
o
r
c
ir
c
uit err
o
r
,
re
pl
a
c
e t
h
e
blow
er.
4
.
If
t
h
e tr
o
u
bl
e
co
ntinues
d
es
p
ite t
h
e
ch
e
c
kin
g of
a
bo
ve ite
m
s
,
re
pl
a
c
e t
h
e
PCB
.
<Blow
er
co
nne
c
t
o
r
> <Ch
e
c
k t
h
e
blow
er
op
erati
o
n v
ol
ta
g
e
: Bl
a
c
k
+R
e
d,
a
pp
r
ox DC 1
2
7~184
V
>