Combination Error Between Indoor Unit Pcb And Fan Pcb - Daikin VRV-WIII RWEYQ72PTJU Service Manual

Troubleshooting by Indication on the Remote Controller

3.12 Combination Error between Indoor Unit PCB and Fan PCB

C6
Error Code
Applicable
FXMQ07~48P
Models
Method of Error Check the condition of transmission with fan PCB (A2P) using indoor unit PCB (A1P).
Detection
Error Decision
When the communication data of fan PCB (A2P) is determined as incorrect.
Conditions
 Defective fan PCB (A2P).
Supposed
 Defective connection of capacity setting adaptor.
Causes
 Field setting error
Troubleshooting
174
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is the type
of fan PCB (A2P)
correct?
YES
Was
indoor unit
NO PCB (A1P)
replaced with a
spare PCB?
YES
Was
correct
capacity
setting adaptor
installed when
replacing it with a
spare PCB?
YES
NO
NO
SiUS30-1301
Replace it with correct fan PCB
(A2P).
Install correct capacity setting
adaptor.
After establishing transmission
for indoor and condensing
units, diagnose the operation
again.
Service Diagnosis