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SiUS30-1301
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
209
Troubleshooting
Note:
1: Disconnect the connector once, then reconnect it and check that it is securely connected.
The fan
motor has ins
u
lation
resistance of not more
than 1M
W
.
The I
NV
.
compressor has
ins
u
lation resistance of not
more than
100k
W
.
Is the type of
the in
v
erter PCB correct?
Are the
connectors of the
condensing
u
nit main PCB
and in
v
erter PCB all
sec
u
rely
connected?
(
*
1)
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Replace it
w
ith a correct PCB.
Properly connect the connectors.
Replace the I
NV
. compressor
(M1C).
Replace the fan motor.
N
O
N
O
YES
YES
N
O
YES
YES
N
O
YES
N
O
N
O
N
O
YES
Error is displayed
again?
N
ot the "
LC
" error. Check the error
code again.
Replace the condensing
u
nit main
PCB (A1P).
Contin
u
e the operation.
(It is s
u
pposed that the error
res
u
lts from ca
u
ses s
u
ch as
instantaneo
u
s po
w
er fail
u
re.)
Replace the in
v
erter PCB.
YES
The
micro-comp
u
ter
normal monitor (green)
of the condensing
u
nit main
PCB (A1P) is
b
linking.
The
micro-comp
u
ter
normal monitor (green) of
the in
v
erter PCB is
b
linking.