Si20-701_B Troubleshooting by Remote Controller
130
3.21
E0
Actuation of Safety Device
Remote Controller Display
E0
Applicable Models
RY-F/FU, R(Y)-G/GA/KU
Method of Error Detection
Actuation of each safety device is detected by safety
device input circuit.
(Safety device unified detection)
Supposed Causes
<Causes related to PCB>
îš„ Defective outdoor unit PCB
îš„ Defective safety device input connection
 Safety device’s harness is broken or disconnected
<Causes related to product as a whole>
îš„ Stop valve is not opened
îš„ Refrigerant piping circuit clogging