Radiation Fin Temperature Rise - Daikin 2MXS-W Series Service Manual

SiUS122226E

7.19 Radiation Fin Temperature Rise

L4
Error Code
Outdoor Unit LED A j 1 h 2 h 3 h 4 i 5 h
Display
Method of Error
A radiation fin temperature rise is detected by checking the radiation fin temperature with the
Detection compressor on.
Error Decision
 The radiation fin temperature with the compressor on is above A.
Conditions  The error is cleared when the 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
A
B
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
2/3/4MXS 5MXS
°C °F °C
90 194 70
85 185 64
Troubleshooting for Outdoor Unit
2/3MXL(H)
°F °C °F
158 90 194
147.2 85 185
4MXL(H)
°C °F
70 158
64 147.2
219