Troubleshooting by Indication on the Remote Controller
SiUS30-1301
174
Service Diagnosis
3.12 Combination Error between Indoor Unit PCB and Fan PCB
Error Code
C6
Applicable
Models
FXMQ07~48P
Method of Error
Detection
Check the condition of transmission with fan PCB (A2P) using indoor unit PCB (A1P).
Error Decision
Conditions
When the communication data of fan PCB (A2P) is determined as incorrect.
Supposed
Causes
Defective fan PCB (A2P).
Defective connection of capacity setting adaptor.
Field setting error
Troubleshooting
N
O
Is the type
of fan PCB (A2P)
correct?
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.
W
as
indoor
u
nit
PCB (A1P)
replaced
w
ith a
spare PCB?
YES
YES
YES
N
O
N
O
W
as
correct
capacity
setting adaptor
installed
w
hen
replacing it
w
ith a
spare PCB?
After esta
b
lishing transmission
for indoor and condensing
u
nits, diagnose the operation
again.
Replace it
w
ith correct fan PCB
(A2P).
Install correct capacity setting
adaptor.