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17.4.14 H59 (Human Activity Sensor Abnormality)
Malfunction Decision Conditions
Feedback signal of human activity sensor.
Malfunction Caused
Feedback signal is fixed at 0 VDC or 5 VDC continuously for 25 seconds during ECONAVI or AUTO COMFORT
operation.
Feedback signal is detected during ECONAVI or AUTO COMFORT off.
Troubleshooting
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
YES
YES
Check if the feedback signal of human activity sensor
(pin 2 and 3) is normal.
When no motion, feedback is 0 V.
When motion detected, feedback is between 1.5 VDC
to 2.5 VDC.
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.
NO
Defect in human activity sensor.
Replace the human activity sensor.
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