Troubleshooting by Indication on the Remote Controller
SiUS28-902_B
140
Service Diagnosis
Troubleshooting
Note:
1 Optional accessories refer to adptor for wiring, auto grill and other accessories.
Is the po
w
er
s
u
pply
v
oltage
20
8
-230
V
?
Is there a
w
rong
w
iring type,
loose terminal or contact
fail
u
re in the inter-
u
nit
w
iring
b
et
w
een the indoor and
o
u
tdoor
u
nits?
Is any optional
accessory (
*
1) connected?
Is the po
w
er
for the optional
accessory s
u
pplied from
b
et
w
een 1 and 2 on
terminal
b
lock
X2M?
Is HAP on the
o
u
tdoor PCB
b
linking?
Is HAP
b
linking?
Re
qu
est an
impro
v
ement to make
the po
w
er s
u
pply
v
oltage fall
w
ithin the
standard range.
W
ire correctly and
sec
u
rely fasten the
terminal scre
w
s.
W
ire correctly.
Replace the o
u
tdoor
u
nit
fan motor.
N
O
N
O
N
O
YES
YES
N
O
T
u
rn OFF the po
w
er s
u
pply
and disconnect the connector
of the o
u
tdoor
u
nit fan motor.
Then po
w
er O
N
again.
A
B
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector or parts may
b
e damaged.
Caution
YES
YES
N
O
YES
YES
N
O
