Haier HSU-12HSA03 Service Manual page 25

in 7s resound 7 times.
b. Then operation as following program: Enter min capacity rated frequency operation; panel show
cool status; have ration in communication.
Enter rated frequency operation; Panel show cool status; have ration in communication.
c. Exit condition Exit rated operate mode and enter remote control set status after received remote
control signal.
.Fault explain
LCD fault code
Indoor unit fault code
Fault code Contents
E1 Room temperature sensor fault
E2 Heat exchange sensor fault
E3 Total current Over Current
E4 EEPROM error
E5 Cool icing
E6 Reset
E7 Communication fault(between indoor and outdoor unit)
E8 communication between panel and indoor unit
E9 High load protection
E10 Humidity Sensor
E11 Stepping motor fault
E12 High voltage static electricity apparatus
E13 Power off moment
E14 Indoor fan motor fault
E15 Central control fault
E16 High voltage electrostatic dust collection fault
E17 reserved
E18 reserved
E19 reserved
Outdoor unit fault code
Fault code Contents
F1 Module fault (overheat, over current, short circuit)
F2 No load
F3 Communication fault
F4 Compressor overheat
F5 Total current Over Current
Haier air conditioner
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Edition: 20070116
Remark
Use in split unit
Heat overload
Remark
Ventilation temperature
protection