SiUS30-1301
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
223
Troubleshooting
Go on to the Diagnosis Flo
w
1
(Defecti
v
e transmission ca
u
sed
w
hen the external control adaptor
for condensing
u
nit is mo
u
nted)
Go on to the Diagnosis Flo
w
2
(Transmission alarm gi
v
en
w
hen
the external control adaptor for
condensing
u
nit is mo
u
nted)
Go on to the Diagnosis Flo
w
3
(A
b
normal transmission
b
et
w
een
the master
u
nit and the sla
v
e
u
nit 1)
Go on to the Diagnosis Flo
w
4
(A
b
normal transmission
b
et
w
een
the master
u
nit and the sla
v
e
u
nit 2)
Go on to the Diagnosis Flo
w
6
(Erroneo
u
s man
u
al address
settings of the sla
v
e
u
nits 1 and 2)
Go on to the Diagnosis Flo
w
7
(Connection of 4 or more
condensing
u
nits to the same
Go on to the Diagnosis Flo
w
5
(Defecti
v
e a
u
to address of the
sla
v
e
u
nits 1 and 2)
Check the LED lamps for
“Check 3” corresponding
to the error code “
U7
” and
for Check 4 in the monitor
mode.
Check 3
Check 3
Check 3
Check 3
Check 3
Check 3
Check 3
Check 4
Check 4
Check 4
Check 4
Check 4
Check 4
Check 4
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.