Troubleshooting by Indication on the Remote Controller
256
Remote Controller Display
U0
Applicable Models
VRVII and II-S Series
Method of Error Detection
Shortage of refrigerant is detected by discharge pipe
thermistor.
Error Decision Conditions
Micro-computer judge and detect if the system is
refrigerant shortage.
∗ Error is not decided while the unit operation is
continued.
Supposed Causes
Shortage of gas or refrigerant system clogging
(incorrect piping)
Defective pressure sensor
Defective outdoor unit PCB
Defective thermistor
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