State of Machine
Cause
Chec
k point
Content of confir
mation
1) Connected mistak
e
The f
an controller connection is confir
med.
T
roub
leshooting
6)
The control pr
inting wir
ing board is
def
ectiv
e
.
The b
linking of LED01 is confir
med.
At the time of tur
ning on light (alw
a
ys)
(There is a possibility of the ther
mistor shor
t-circuit.)
The CN01 connector is remo
v
ed, and measures
resistance
.
When the resistance is 1 kilo-ohm or
less
, repair the control pr
inting board due to the
ther
mistor shor
t-circuit breakdo
wn.
In case of ther
mistor is correct, the control pr
inting
board is def
ectiv
e and e
xchange
.
At the time of tur
ning off light
(There is a possibility of the ther
mistor open
breakdo
wn.)
The CN01 connector is remo
v
ed, and measures
resistance
.
When the resistance is 25 kilo-ohm or
more
, repair the control pr
inting board due to the
ther
mistor open breakdo
wn.
In case of ther
mistor is correct, the control pr
inting
board is def
ectiv
e and e
xchange
.
After chec
king item 1)-5), when the po
w
er
supply is tur
ned on, the b
linking of LED01
is confir
med.
3)
The control pr
inting wir
ing board is
def
ectiv
e
.
Item 1) is chec
k
ed, again.
After chec
king item 1), there is a
possibility of a def
ectiv
e pr
inted circuit
board if a nor
mal dr
iv
e is not done
.
After chec
king item 1), if there is no prob
lem,
the control pr
inting board is def
ectiv
e and e
xchange
.
13
4.
The f
an ne
ver
becomes full load
dr
iv
e
. (In heating)
CN04- the wir
ing f
or full load input
(CN04 input is A
C198-264V in heating.)
NF-SCRM-TB OUT
CNU
, CNV
, CNW
-SCRM
(The connection is noted.)
TB IN-NF wir
ing
TB IN-T01-CN02
It is confir
med that wir
ing is correctly connected.
The wir
ing mistak
e is corrected.
At the time of b
linking
The item 2), 3) are confir
med again, and there is
no connection mistak
e
, the control pr
inting board
is def
ectiv
e and e
xchange
.
The wir
ing mistak
e is corrected.
The unit side connection is confir
med.
P
osition of the wir
ing f
or full load input
(In heating)
2)
The th
yr
istor module
(SCRM)
is def
ectiv
e
.
The content of P14 is chec
k
ed.
(SCRM)
The content of P14 is judgment.
(SCRM)
Replace SCRM when abnor
mality is f
ound.