SiUS30-1301
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
233
Correct the
w
iring.
Replace the indoor
u
nit PCB or
Branch Selector
u
nit PCB.
N
O
YES
Check of error 3
Check of error 4
Check of error 3
Check of error 4
Diagnosis Flo
w
6
Is the
w
iring
b
et
w
een the indoor
and Branch Selector
u
nit correct?
YES
N
O
Connect the model BS
V
Q-P.
Replace the condensing
u
nit PCB
as sho
w
n
b
elo
w
.
•
W
ith single systems, replace the
ser
v
ice monitor PCB 1 (A1P).
•
W
ith m
u
lti systems, replace the
condensing
u
nit main PCB (A1P).
Is the model BS
V
Q-P
connected?