Si20-701_B Troubleshooting by Remote Controller
212
Remote Controller Display
F3
Applicable Models
R(Y)-LU, RR-M
Method of Error Detection
The error is detected according to temperature detected
by discharge pipe thermistor.
Error Decision Conditions
When discharge pipe temperature becomes
abnormally high
When discharge pipe temperature rises suddenly
When the discharge pipe thermistor comes out of its
installed position
Supposed Causes
Improper amount of refrigerant
Refrigerant piping circuit clogging
Discharge pipe thermistor comes off the discharge
pipe port
Electronic expansion valve coil is disconnected from
valve body
Compressor lead wire has lack of phase
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