Installation Condition Check; Outdoor Fan System Check - Daikin FTXN25L Service Manual

Refrigerant Diagram

6.6 Installation condition check

Installation condition check.
Check the
allowable dimensions
of the air suction and
discharge area.
OK
Is the
discharged air
short-circuited?
No
Is the
outdoor heat
exchanger very
dirty?
No
Is the
airflow blocked by
obstacles or winds
blowing in the opposite
direction?
Yes

6.7 Outdoor fan system check

DC motor
Check the outdoor fan
system.
Outdoor fan running?
Yes
Outdoor fan system is
functioning.
77
NG
Yes
Yes
No
Fan motor
No
lead wire connector
disconnected?
Yes
Reconnect the connector.
Change the installation location
,direction or remove obstacles.
Change the installation location
,direction or remove obstacles.
Clean the outdoor heat
exchanger.
Check the outdoor
temperature. (The outdoor
temperature should be
within the operation range.)
Change the installation location
,direction or remove obstacles.
Refer to
No
Appendix A Rotation pulse
check on outdoor unit PCB.
Refer Page 78,item 6.6