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
91
Versi
o
n 2.0
5.10. 15Error
Error occurrence conditions and check items
Description Error
15E
MICOM
error
Check items
If
an err
o
r
occ
urs in t
h
e interna
l c
ir
c
uit
of
t
h
e
PCB (
e.
g
.
,
resistan
c
e
,
transist
o
r
o
r
re
l
a
y f
au
l
t
),
t
h
e s
y
ste
m d
is
pl
a
y
s
15E (cl
eare
d m
anua
lly) o
n t
h
e re
mo
te
co
ntr
oll
er
an
d
t
h
e
PCB
.
1
.
D
e
f
e
c
tive
PCB
.
2.
Ch
e
c
k
, w
it
h
a tester
,
i
f
t
h
e
PCB
is in t
h
e rate
d
v
ol
ta
g
e
(AC 1
02
~13
2 V
)
.
3
.
D
is
co
nne
c
t t
h
e
g
r
o
un
d w
ire
,
an
d ch
e
c
k t
h
e
PCB
.
Check method
Description Error
Gas
w
arnin
g
D
e
f
e
c
tive
PCB
Pow
er su
pply
err
o
r
Pow
er su
pply
g
r
o
un
d
in
g
n
o
ise
R
e
pl
a
c
e t
h
e
co
ntr
oll
er i
f
t
h
ere is an err
o
r in t
h
e
PCB
interna
l
c
ir
c
uit.
Ch
e
c
k
, w
it
h
a tester
,
i
f
t
h
e
PCB
is in t
h
e rate
d
v
ol
ta
g
e.
Ch
e
c
k
, w
it
h
a tester
,
i
f
t
h
e v
ol
ta
g
e at t
h
e re
c
e
p
ta
cl
e is
AC 1
02
~13
2 V.
Pow
er su
pply g
r
o
un
d
in
g
n
o
ise
c
auses
m
a
lf
un
c
ti
o
n.
D
is
co
nne
c
t
g
r
o
un
d by
a
pply
in
g
a ta
p
e
o
n t
h
e
g
r
o
un
d
in
g
ter
m
ina
l
in t
h
e re
c
e
p
ta
cl
e
,
an
d ch
e
c
k i
f
t
h
e
PCB wo
rks
n
o
r
m
a
lly
.
Cause