Haier AU55NFIAIA Service Manual page 58

(2) Turn on/off unit
Cooling
operation
Commercial Air Conditioner
Control function treat module
On/off
On
Trouble signal
Off
Mode
determinatio
Abnormal
operation n
No
Choose mode
Heating
operation
- 57 -
Off
Power indicator turn off,
operation indicator turn
off
Yes
Trouble indication
Yes
Buzzer sound twice,
refuse
signal
Dehumidifying
operation
A
Model: AU55NFIAIA
to receive
Fan motor turn off,
electronic expansion
valve close, louver
motor turn off