87
17.4.14 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe
temperature sensor are used to determine sensor errors.
Malfunction Caused
Faulty connector connection.
Faulty sensor.
Faulty PCB.
Troubleshooting
Is the measured resistance of the outdoor liquid pipe
temperature sensor matches the value specified in its
characteristic chart?
Is the connector connection normal?
When abnormality indication starts again.
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
NO
NO
YES
YES
Check the outdoor discharge pipe temperature sensor:
Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.
Check the connector connection:
Turn off the power.
Check the connector connection.
Connector poor contact.
Correct the connection.
Defect in outdoor unit PCB.
Replace the outdoor unit PCB.
Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.
Summary of Contents for CS-RE9SKUA
Page 111: ...111 Figure 19 Figure 20...
