Daikin REYQ8-48PY1B - 3.21 “E7” Outdoor Unit: Malfunction of Outdoor Unit Fan Motor

SiBE37-701_B Troubleshooting by Indication on the Remote Controller
Troubleshooting 282
3.13
“
C6
”
Indoor Unit: Failure of Combination (Between Indoor
unit PCB and Fan PCB)
Remote
Controller
Display
C6
Applicable
Models
FXMQ20~140P
Method of
Malfunction
Detection
Conduct open line detection with PCB for fan (A2P) using indoor PCB (A1P).
Malfunction
Decision
Conditions
When the communication data of PCB for fan (A2P) is determined as incorrect.
Supposed
Causes
The possible causes are:

Malfunction of PCB for fan (A2P).

Connection defect of capacity setting adaptor.

Setting mistake on site.
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
YES
Replace it with correct PCB for fan
(A2P).
YES
After establishing transmission
for indoor and outdoor,
diagnose the operation again.
Is the type of PCB
for fan (A2P)
correct?
Was correct capacity setting
adaptor installed when replacing
it with supplementary PCB?
Was indoor PCB
(A1P) replaced with
supplementary PCB?
YES
NO
NO
Install correct capacity setting
adaptor.
NO