Haier AW07EH2VHA Service Manual page 112

The error codes that are displayed on the indoor units may vary from the outdoor unit codes. The information communicated by
the error code will be the SAME for both indoor and outdoor units even though the numbers may differ.
Indoor Outdoor
Display LED
F12
F1
F22
F3
F20*
F19*
F27
F4
F8*
F21 10
F7 11
F6 12
F25 13
F30*
E7 15
F13* 16
F14* 17
F11 18
F28
F15*
F5* 23
F2* 24
F23 25
F9 26
F24 27
F10 28
F16 29
F17 30
F18 31
F29 32
F30 33
F31 34
F32 35
F26 36
F34
F35 38
F36 39
F33 40
F38 41
F39 42
F40 43
F41 44
F42 45
F43
E1
E2
E4
E8
E12
E13 / C1
E14
* Hidden indoor error code. LED1 will flash outdoors, but no error will appear on indoor unit display. To view error code on indoor display, press and hold the
Emergency button for 15 seconds.
I-10
Diagnosis
1 Outdoor EEPROM failure
2 IPM overcurrent or short circuit
/ Outdoor alternating current, over current protection
4 Communication failure between the IPM and outdoor PCB
5 Module operated overload (compressor overload protection)
6 Module low or high voltage
/ Compressor current sampling circuit fault
8 Overheat protection for discharge temperature
9 Malfunction of the DC fan motor
Malfunction of defrost temperature sensor
Suction temperature sensor failure
Ambient temperature sensor failure
Discharge temperature sensor failure
/ High outdoor suction temperature
Communication failure between the indoor & outdoor unit
Lack of refrigerant or discharging
4-way valve switching failure
Loss of synchronism detection
/ Position detection circuit fault of compressor
/ Terminal block temp too high
Module thermal overload
Compressor start failure, over-current
Phase current protection (IPM)
MCU reset
Module current detect circuit malfunction
Liquid pipe sensor failure: Circuit A
Liquid pipe sensor failure: Circuit B
Liquid pipe sensor failure: Circuit C
Liquid pipe sensor failure: Circuit D
Gas pipe sensor failure: Circuit A
Gas pipe sensor failure: Circuit B
Gas pipe sensor failure: Circuit C
Gas pipe sensor failure: Circuit D
Gas pipe sensor failure: Circuit E
/ Outdoor pipe temperature protection in cooling mode
Malfunction of module temperature sensor momentary power failure detection
Malfunction of condensing temperature sensor
Liquid pipe sensor failure: Circuit E
Toci temperature sensor failure
High Pressure switch open
Low Pressure switch open
System high pressure protection: Overcharged, high condensing temperature or malfunction of fan motor
System low pressure protection: Undercharged, low defrosting temperature, or malfunction of fan motor
/ Incorrect match between indoor & outdoor
/ Indoor ambient temperature sensor failure
/ Indoor coil temperature sensor failure
/ Indoor PCB EEPROM failure
/ Communication fault between the controller and Indoor unit
/ Drain system malfunction
/ Zero cross signal detected wrong
/ Indoor fan motor malfunction
CONSOLE TECHNICAL OVERVIEW
Error Codes