Radiation Fin Temperature Rise - Daikin FTXM-V Series Service Manual

SiUS042113E

4.26 Radiation Fin Temperature Rise

L4
Error Code
Method of Error A radiation fin temperature rise is detected by checking the radiation fin thermistor with the
Detection compressor on.
Error Decision
 If the radiation fin temperature with the compressor on is above A.
Conditions  The error is cleared when the radiation fin temperature drops below B.
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 60 minutes without any other error
09/12 class
18/24 class
Supposed  Defective outdoor fan motor
Causes  Short circuit
 Defective radiation fin thermistor
 Disconnection of connector
 Defective outdoor unit PCB
 Silicone grease not applied properly on the radiation fin after replacing the outdoor unit PCB
Part 6 Service Diagnosis
A B
(°C) (°F) (°C)
77 171 38
82 180 77
(°F)
100
171
Troubleshooting
129