Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit
SiSG121917E
117
Part 6 Service Diagnosis
Note
Troubleshooting
R6000615
Connectors:
Check the connection of
connectors.
★
Correct the connection.
OK?
Check the po
w
er s
u
pply
v
oltage.
Start operation.
Voltage as rated?
Error repeats?
Check the po
w
er s
u
pply
v
oltage.
Start operation.
Voltage as rated?
Error repeats?
Error repeats?
Com
b
ination of
the indoor and o
u
tdoor
u
nit matched?
YES
N
O
N
O
YES
N
O
N
O
YES
Caution
To sec
u
re the connection,
disconnect the connectors once
and then reconnect.
YES
N
O
YES
N
O
YES
N
O
YES
Match the compati
b
le
models.
Correct the po
w
er
s
u
pply.
Replace the indoor
u
nit
PCB (control PCB).
Completed.
Completed.
Correct the po
w
er
s
u
pply.
Replace the indoor
u
nit
PCB (control PCB).
Completed.
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.
Wall mounted 25/35/50 class
Terminal block ~ Control PCB (H1, H2, H3)
Wall mounted 60/71 class
Terminal block ~ Filter PCB (S100)
Filter PCB (S800) ~ Control PCB (S900)
LSP duct
Terminal block ~ Control PCB (H1, H2, H3)