Haier D-Series Service Manual page 24

In cooling mode, conversely.
If the human sensor running abnormal, please check that if the structure deformed or installed in place. if
OK, then check that if the terminal between human sensor module and the PCB connected well. if OK,
using multimeter to test the harness which connect the human sensor and the processing board is normal or
not .If OK, then replace the module or PCB.
7.1.10 Light sensor
Entry conditions: after light function turn on, consecutive five minutes detected indoor light intensity is less
than the set value, the follow/Evade function automatically turn on, if within 20 minutes of continuous no
human activity, the light intensity has been less than the set value, the unit will be automatically enters the
Smart sleep mode, according to sleep curve operation
Exit conditions: 20 minutes continuously detects the room light intensity is greater than the set value or smart
sleep mode eight hours or turn off the light sensor functions.
7.1.11 Urgent on/off input
Press the urgency button the buzzer will ring. The system will enter the automatic mode if you don't press the
button for more than 5 seconds.
Under the system off mode, if you press the urgency key for 5 to 10 seconds, the system will start the test
operation.
Under the system off mode, if you press the urgency key for 10 to 15 seconds, the display screen will show
the resume of the last malfunction.
If the system is under operation, the press on the urgency key will stop it.
Under the system off mode, the display screen will show automatic running sign.
Under the system off mode, the system will not receive the remote control signal if the press on the urgency
key doesn't last for 15 seconds or if the key is loosened.
Urgency operation: If you press the urgency key for less than 5 seconds, the buzzer will ring when you press
the on/off key. The system will enter the urgency operation when the urgency key is loosened. The urgency
operation is fully automatic.
Test operation.
The inlet temperature sensor doesn't work, the indoor fan and the indoor air direction board motor works
synchronically. High speed airflow, cooling, outdoor system on, etc, will send the ambient temperature 30
centigrade and coil temperature 16 centigrade information to the outdoor system.
Test operation
The defrost protection of the evaporator doesn't work.
The temperature control doesn't work.
The test operation will be finished in 30 minutes.
The test operation can be stopped by the relative commands from the remote control.
7.1.12 Abnormality confirmation approaches
1. indoor temperature sensor abnormality:
Under the operation, the normal temperature ranges from 120 degree to -30 degree. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
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Functions and control
Domestic air conditioner