Haier AU182AFBEA - Page 291

1
Module error Overheat, overcurrent or
short-circuit
Off On-off 1
2
No load Current sensor is broken or
compressor is not started.
Off On-off 2
3
Overheated
compressor
Compressor temperature
>120°C
Off On-off 4
4 Total overcurrent Current >17A Off On-off 5
5
Fault in ambient
temperature sensor
Short-circuit/open-circuit Off On-off 6
6
Fault in heat
exchange sensor
Short-circuit/open-circuit Off On-off 7
7
ROM of single chip
micro-controller is
broken
ROM is broken. Off On-off 8
8
Overvoltage
protection
Voltage >270V Off On-off 10
9
Overload in cooling Heat exchange temperature
of outdoor unit >72°C
Off On-off 12
10 E2ROM error E2ROM is broken. Off On-off 14
Fault with
outdoor
unit
LED1, LED2, LED3 and LED4 for outdoor unit are used to show fault information:
LED4 LED3 LED2 LED1 Remarks No.
(Fault
code)
Fault name Possible causes
Status Status Status Status
1 Module error Overheat, overcurrent
or short-circuit
Off Off Off
On
2 No load
Current sensor is broken or
compressor is not started.
Off Off
On
Off
3 Transmission error (reserved)
Off Off
On On
4 Overheated
compressor
Compressor
temperature >120°C
Off
On
Off Off
5 Total overcurrent Current >17A
Off
On
Off
On
6 Fault in ambient
temperature sensor
Short-circuit/open-circuit
Off
On On
Off
7 Fault in heat
exchange sensor
Short-circuit/open-circuit
Off
On On On
8 Low pressure
protection
Gas is inadequate. On
Off
Off Off
9 Fault in compressor
sensor
(reserved) On
Off Off
On
10 Overvoltage
protection
Voltage >270V On
Off
On
Off
Fault
with
outdoor
unit
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