Radiation Fin Temperature Rise - Daikin Super Multi NX C-Series Service Manual

Troubleshooting

5.21 Radiation Fin Temperature Rise

L4
Remote
Controller
Display
Outdoor Unit LED
A
Display
Method of A radiation fin temperature rise is detected by checking the radiation fin temperature being
Malfunction detected by the fin thermistor with the compressor on.
Detection
Malfunction
If the radiation fin temperature with the compressor on is above 90°C for 5.2~7.5 kW-or-smaller
Decision class systems or above 85°C for 8.0 · 9.0 kW class systems,
" If a radiation fin temperature rise takes place 4 times successively, the system will be shut
Conditions
" The error counter will reset itself if this or any other error does not occur during the following
" Fin temperature rise due to defective outdoor unit fan
Supposed
" Fin temperature rise due to short-circuit
Causes
" Fin thermistor defective
" Connector in poor contact
" Outdoor unit PCB defective
196
5 1 1 2 1 3 1 4
down.
60-minute compressor running time (total time).
4
SiE12-411
Service Diagnosis