Si20-701_B Troubleshooting by Remote Controller
270
3.60
L4
Radiation Fin Temperature
Rise
Remote Controller Display
L4
Applicable Models
RZQ-K/H, RZQ(S)-B/C, RZQG, RZR-KU/HU
Method of Error Detection
Radiation fin temperature is detected by the radiation fin
thermistor.
Error Decision Conditions
When the temperature of the inverter radiation fin rises
abnormally due to defective heat dissipation.
Supposed Causes
îš„ Defective radiation fin thermistor
îš„ High outdoor air temperature
îš„ Blocked suction opening
îš„ Dirty radiation fin
îš„ Defective outdoor inverter PCB
îš„ Activation of fin thermal switch (For RZQ-K, RZQ(S)-
B/C, RZQG, RZR-KU/HU)
îš„ Insufficient cooling of inverter radiation fin (For RZQ-K,
RZQ(S)-B/C, RZQG, RZR-KU/HU)
îš„ Defective propeller fan (For RZR-KUV2S)
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