Radiation Fin Temperature Rise - Daikin FTXS09DVJU Service Manual

Troubleshooting
4.19

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 If the radiation fin temperature with the compressor on is above 194°F.
Decision
Conditions
Supposed
Causes
158
If a radiation fin temperature rise takes place 4 times successively, the system will be shut
down.
The error counter will reset itself if this or any other error does not occur during the following 60-
minute compressor running time (total time).
Fin temperature rise due to defective outdoor unit fan
Fin temperature rise due to short-circuit
Fin thermistor defective
Connector in poor contact
Outdoor unit PCB defective
SiUS04-702
Service Diagnosis