SiENBE12-713 Troubleshooting
Service Diagnosis 267
5.23 Radiation Fin Temperature Rise
Remote Control
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
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