Combination Error Between Indoor Unit Pcb And Fan Pcb - Daikin RZQ Series FCQ20EVA Service Manual

SiME281501E
4.14 Combination Error between Indoor Unit PCB and Fan
PCB
C6
Error Code
Applicable
FBQ
Models
Method of Error Conduct open line detection with fan PCB using indoor unit PCB (A1P).
Detection
Error Decision
When the communication data of fan PCB is determined as incorrect
Conditions
 Defective fan PCB
Supposed
 Defective connection of capacity setting adaptor.
Causes
 Defective field setting
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
Is the type of fan PCB
(A2P) correct? (∗1)
Was indoor unit PCB
NO
(A1P) replaced with a spare
setting adaptor installed when
replacing it with a spare
1. Type of fan PCB.
Note:
FBQ20/24
FBQ36-48
Service Diagnosis
NO
YES
PCB?
YES
Was
correct capacity
NO
PCB?
YES
Applicable model
Troubleshooting by Remote Controller
Type of fan PCB
PC0609-2
PC0609-3
Replace it with correct fan PCB
(A2P).
Install correct capacity setting
adaptor.
After establishing transmission
for indoor and outdoor, diagnose
the operation again.
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