Daikin FTX-N Series Service Manual page 182

Troubleshooting for Outdoor Unit
Troubleshooting
Note
Refer to Silicone Grease on Power Transistor/Diode Bridge on page 219 for details.
Reference
Check No.17 Refer to P.190
Reference
Check No.19 Refer to P.191
177
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Turn off the power. Then, turn on
the power to restart the system.
Error displayed
again?
NO
Check No. 19
Check the outdoor fan.
OK
Radiation fin
dirty?
YES
YES
Has the PCB
been replaced?
NO
Check the radiation fin
temperature.
Above A?
YES
NG
NO
SiUS091601EA
YES
Check if silicone grease is
applied properly on the
radiation fin. If not, apply
the silicone grease.
NO
Replace the outdoor unit
PCB (main PCB).
Replace the outdoor fan
motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB (main PCB).
Check the installation
condition.
Go to Check No. 17.
Clean up the radiation fin.
(R23953)
Part 6 Service Diagnosis