Radiation Fin Temperature Rise - Daikin RX-W Series Service Manual

SiUS092230EA

7.17 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
15/18/24 class
Supposed
 Defective outdoor fan motor
 Short circuit
Causes
 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
99 210.2 70
100 212 57
Troubleshooting for Outdoor Unit
°F
158
134.6
185