Haier AB28NACBEA - 10.1 Failure code

10. Diagnostic information
10.1 Failure code
remote control type unit:
failure description
indoor running
lamp flash times
indoor ambient temp. sensor failure
1
indoor coil temp.sensor failure
2
outdoor ambient temp. sensor failure
or 4-way valve broken down in heating mode
3
outdoor coil temp. sensor failure
4
over-current protection failure or phase sequence fault
5
refrigerant system pressure too high or low
6
communication between indoor PCB and receiver panel failure
8
communication between indoor PCB and outdoor PCB
9
drainage failure
10
Note: For convertible type unit, drainage failure is not available.
Wired control type unit failure code:
Failure description Failure code on wired
controller
Indoor ambient temp. sensor abnormal E1
Indoor coil temp. sensor abnormal E2
Outdoor ambient temp. sensor abnormal E3
Outdoor coil temp. sensor abnormal E4
Over current protection E5
Over high or low pressure protection E6
Communication between panel and indoor
abnormal
E8
Communication between indoor and outdoor
abnormal
E9
Water pump failure E0