Board) - Daikin ERQ Service Manual

Troubleshooting by Indication on the Remote Controller
C6
3.10 " " AHU: Failure of Combination (Between AHU PC
Board and Fan PC Board)
C6
Remote
Controller
Display
Applicable
FXMQ40~125P
Models
Method of Conduct open line detection with PC board for fan (A2P) using indoor PC board (A1P).
Malfunction
Detection
Malfunction
When the communication data of PC board for fan (A2P) is determined as incorrect.
Decision
Conditions
Supposed The possible causes are:
Causes
Troubleshooting
176
Malfunction of PC board for fan (A2P).
Connection defect of capacity setting adapter.
Setting mistake on site.
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the type
of PC board for fan (A2P)
correct?
YES
Was indoor
NO
PC board (A1P) replaced
with supplementary
PC board?
YES
Was
correct capacity
setting adaptor installed
when replacing
it with supplementary
PC board?
YES
NO
NO
: http://splitoff.ru/tehn-doc.html
ESIE09-05
Replace it with correct PC board
for fan (A2P).
Install correct capacity setting
adaptor.
After establishing transmission for
indoor and outdoor, diagnose the
operation again.
Troubleshooting