Haier H-MRV Series - Failure Code and Troubleshooting; AU242 FHBHA Fault Codes and Troubleshooting

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11. Failure code and troubleshooting
AU242FHBHA Fault Code List
Number of
flashes by
fault
indicator
Location Description
Is it
fixable
1
TE circuit of defrost
temperature sensor,
outdoor unit
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit) for
60 seconds. The fault is fixable.
Yes
2
TA circuit of ambient
temperature sensor
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit) for
60 seconds. The fault is fixable.
Yes
3
TS circuit of suction
line temperature
sensor
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit) for
60 seconds. The fault is fixable.
Yes
4
TD circuit of
discharge line
temperature sensor
After 3 minutes of compressor operation, the
detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit) for
60 seconds. Fixable when below 80°C.
Yes
5
TC circuit of central
temperature sensor,
outdoor unit
condenser
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit) for
60 seconds. 。
Yes
6
Overcurrent An alarm is given five seconds after the current
limit is exceeded. Where there are 3 alarms
within 30 minutes, the fault code is displayed.
The fault is not fixable.
No
9
IPM protection IPM overcurrent, short-circuit, overtemperature
and undervoltage. When the fault occurs three
times within 30 minutes, an alarm is given and
the fault is not fixable.
10
Base board EEPROM
error
857 EEPROM data access error, 11 flashes.
The fault is not fixable.
11
Discharge line
temperature
protection (TD)
After the compressor is started, the
temperature detected by TD1 sensor is above
120°C. The compressor is shut off in 5 seconds
and an alarm is given. Where there are 3
alarms within 30 minutes, the fault code 11 is
displayed. The fault is not fixable.
12
857-to-809
transmission error
13
High pressure switch
circuit
The high pressure switch is activated. The fault
is corrected after the normal pressure is
restored for 2 minutes.
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