[Ab] Pressure Sensor (Pd/Ps) Miswiring - Toshiba HFCR407C Service Manual

Check code
[Ab]
Pressure sensor (Pd/Ps) miswiring
Is the pipe connection position of
Pd sensor/Ps sensor correct ?
Are the output voltage
characteristics of Pd sensor/Ps
sensor normal ?
Is the wiring of compressor
Modify wiring.
14
Diagnostic procedure for check code
No
Yes
No
Yes
Yes
normal ?
No
Troubleshooting
Operation cause
1. Connector misconnection of Pd/Ps sensors
2. Pd/Ps sensor error
3. Compressor inverse operation, compressor error
Are the pressure
characteristics normal when
compressor is operating ?
No
Check compressor.
100
Check connection.
Pd sensor: CN501
[
Ps sensor: CN500
Sensor error
Yes
Check the interface board.
]