168
Check code name
[F23] / [43]
(d07 / AI-NET)
Check code name
Ps sensor error
Cause of operation
Output voltage error of Ps sensor
YES
YES
YES
NO
NO
Is not refrigerant by
passed from discharge to
suction of 4-way valve?
Sensor error
Is connection of Ps sensor
connector correct?
Are output voltage characteristics
of Ps sensor normal?
Is there no leakage
from SV4 valve?
Replace SV4 valve.
YES
NO NO
1 Pressure (Check joint) by pressure gauge
2 Pressure display on 7-segment display
3 Output voltage of I/F P.C. board
If 1 and 2, 3 are different, an error of pressure sensor itself is considered.
If 2 and 3 are different, check interface P.C. board.
Connector: CN500, White
Correct connection of connector.
Check 4-way valve.
Check compressor.
Check code name
[F24] / [43]
(d07 / AI-NET)
Check code name
Pd sensor error
Cause of operation
Output voltage error of Pd sensor
It is output voltage error of Pd sensor. Check disconnection of connection of connector (Pd sensor: CN501) circuit
and output voltage of sensor.
If the sensor is normal, replace outdoor I/F P.C. board.
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