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Troubleshooting by Indication on the Remote Controller
147
Remote Controller Display
F6
Applicable Models
VRVII Series
Method of Error Detection
Refrigerant overcharge is detected from suction pipe and
subcooling heat exchanger gas pipe temperature during
check operation.
Error Decision Conditions
When the suction pipe and subcooling heat exchanger
gas pipe temperature is lower than evaporating
temperature during check operation.
Supposed Causes
Refrigerant overcharge
Disconnection of the receiver gas pipe thermistor
Troubleshooting
NO
YES
Are the
suction pipe
and subcooling heat
exchanger gas pipe
thermistor installed
on pipes
correctly?
Is the
characteristic
of the suction pipe
and subcooling heat
exchanger gas pipe
thermistor
normal?
NO
YES
Install the
thermistor
correctly.
Replace the
thermistor.
Refrigerant
overcharged.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.