Toshiba RAS-18SKP-ES - Indoor Unit Troubleshooting Procedures

[19 outdoor TD sensor error] (Heat pump model)
[1E Discharge temp. error] (Heat pump model)
NO NO
NO
YES
NO
YES
YES
NO
YES
Is protective
controller such as discharge
thermostat normal?
Is charged amount
of refrigerant normal?
Is overload relay normal?
Is TD sensor resistance value
(50 kΩ at 25°C) normal?
Are wires connected
to connector properly?
Outdoor P.C. board is defective.
Connect wires to
connector properly.
Check and modify charged
amount of refrigerant.
Unit operates normally.
Replace TD sensor.
Replace P.C. board.
NO
NO
YES
YES
Is TD sensor
connected properly?
Is TD sensor resistance value
(50 kΩ at 25°C) normal?
Outdoor P.C. board is defective.
Connect connector
properly.
Replace TD sensor.
Replace P.C. board.
– 55 −
FILE NO. SVM-09036