Daikin F-Series, Service Manual

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SiBE12-713 Troubleshooting
Service Diagnosis 267
5.23 Radiation Fin Temperature Rise
Remote
Controller
Display
L4
Outdoor Unit LED
Display A
5
1
1
2
1
3
1
4
4
Method of
Malfunction
Detection A radiation fin temperature rise is detected by checking the radiation fin temperature being
detected by the fin thermistor with the compressor on.
Malfunction
Decision
Conditions
„
The radiation fin temperature with the compressor on is above 103°C.
„
The error is cleared when the temperature drops below 95°C.
„
If a radiation fin temperature rise takes place 255 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).
Supposed
Causes
„
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