Radiation Fin Temperature Rise - Daikin K-Series Service Manual

SiBE061121.book Page 109 Monday, April 25, 2011 3:21 PM
SiBE061121

4.23 Radiation Fin Temperature Rise

L4
Remote
Controller
Display
Method of A radiation fin temperature rise is detected by checking the radiation fin thermistor with the
compressor on.
Malfunction
Detection
Malfunction
Decision
Conditions
25/35 class
50 class
Supposed
Causes
Service Diagnosis
If the radiation fin temperature with the compressor on is above A °C.
The error is cleared when the radiation fin temperature drops below B °C.
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
A (°C)
98
105
Defective outdoor fan motor
Short circuit
Defective radiation 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.
B (°C)
78
99
Troubleshooting
109