Daikin SUPER MULTI NX G Series - Radiation Fin Temperature Rise

SiUS12-928_A Troubleshooting
Service Diagnosis 138
5.23 Radiation Fin Temperature Rise
Remote
Controller
Display
L4
Outdoor Unit LED
Display
A 1 2 3 4
Method of
Malfunction
Detection
A radiation fin temperature rise is detected by checking the radiation fin temperature with the
compressor on.
Malfunction
Decision
Conditions
 The radiation fin temperature with the compressor on is above .
 The error is cleared when the temperature drops below
.
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
 Defective outdoor unit fan
 Short circuit
 Defective fin thermistor
 Disconnection of connector
 Defective outdoor unit PCB
 Silicon grease is not applied properly on the radiation fin after replacing the outdoor unit PCB.
18 class 90°C (194°F) 85°C (185°F)
24/32 class 105°C (221°F) 97°C (207°F)