Radiation Fin Temperature Rise - Daikin FTKS20CVMB Service Manual

SiENBE04-401A

4.18 Radiation Fin Temperature Rise

L4
Remote control
Display
A radiation fin temperature rise is detected by checking the radiation fin thermistor with the
Method of
compressor on.
Malfunction
Detection
If the radiation fin temperature with the compressor on is above 90°C (100°C for (A)RK(X)H,
Malfunction
R(Y)N models).
Decision
Conditions
Supposed
Causes
Service Diagnosis
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
Troubleshooting
131