[D9] Oil Temperature (Tk2) Detection Alarm - Toshiba HFCR407C Service Manual

Check code
[d9]
Oil temperature (TK2) detection alarm
Is TK2 sensor out of place ?
Is TK2 sensor in contact
with discharge pipe ?
Is there a miswiring of
TK1/TK2/TK3 sensor ?
Is the resistance value
characteristics of TK2 sensor
Is there a leakage or blockage
in the peripheral circuit of the
oil tank ? (*1)
14
Check interface PC board.
Diagnostic procedure for check code
Yes
No
Yes
No
Yes
No
No
normal ?
Yes
Yes
Leakage/blockage
Troubleshooting
Operation cause
1. TK2 sensor out of place, miswiring, resistance
value characteristics error
2. Oil tank peripheral circuit error
[
Check valve leakage
Capillary blockage
Strainer blockage
110
]
Modify sensor mounting.
Correct the pipe so that the TK2 sensor circuit
does not touch the discharge pipe.
Modify miswiring.
[ ]
TK1 sensor: CN516
TK2 sensor: CN515
TK3 sensor: CN507
Sensor error.
Replace leaked/blockage part.