Failure Code - Carrier 38VT008173HQEE Manual De Instalación Y Propietario

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Failure Code

Failure code description: (failure code of the whole system is shown as 8 bits, so in total there are 256 codes. Indoor
failure code should be judged by the table and the unit number)
Outdoor failure code exists in EEPROM, in which 5 failure codes can be stored.
Indoor failure code exists in EEPROM, in which 5 failure codes can be stored.
Can clear failure codes from the indoor or the outdoor unit.
Failure codes are distributed as following:
0~19: indoor failure code 20~99: outdoor failure code 100~109: DC motor failure code
110~125: inverter module failure code 126~127: soft auto-check failure code
Physical master unit:
Dip switch SW9, SW10, SW11 are at 0, 0, 0, digital tube displays failure code 20~127, it is the master failure code.
Dip switch SW9, SW10, SW11 are 1, 0, 0, digital tube displays failure code 20~127, it is failure code of No. 1 slave
unit. Dip switch SW9, SW10, SW11 are 2, 0, 0, digital tube displays failure code 20~127, it is failure code of No. 2
slave unit. Physical slave unit:
Dip switch SW9, SW10, SW11 are at 0, 0, 0, digital tube displays failure code 20~127, it is single slave unit failure
code.
Outdoor unit failure code displays principle on wired controller:
When the outdoor unit compressor is running, the indoor wired controller will display the failure code of the outdoor
unit with higher priority. When the compressor stops, it displays all the indoor unit failures. The indoor unit failures will
be classified as below: sensor failure, inverter board failure, fan motor driving board failure, any protections etc.
Outdoor unit failure code
Digital tube
Failure code definition
indication on
master unit
20-0
Defrosting temp. sensor
Tdef failure
21
Ambient temp. sensor
Ta failure
22-2
Suction temp. sensor
Ts(acc) failure
23-0
Discharging temp.
sensor Td1 failure
23-1
Discharging temp.
sensor Td2 failure
24-0
Modular heat sensor
Th failure
24-1
Oil temp. sensor Toil1
failure
24-2
Oil temp. sensor Toil2
failure
25-0
Inlet temp. of heat
exchanger Toci1 failure
26-0
Indoor unit
26-1
communication failure
26-2
Failure description
AD value is below 11(open circuit) or over 1012(short circuit) for
60 seconds in cooling mode. If the sensor is abnormal, the unit does
not deal with it. Moreover, in defrosting and within 3 minutes after
defrosting, there is no alarm
AD value is below 11(open circuit) or over 1012(short circuit) for 60
seconds
AD value is below 11(open circuit) or over 1012(short circuit) for 60
seconds
AD value is below 11(open circuit) or over 1012(short circuit) for 60
seconds
AD value is below 11(open circuit) or over 1012(short circuit) for 60
seconds
AD value is below 11(open circuit) or over 1012(short circuit) for 60
seconds
For continuous 200 cycles, cannot find connected indoor
For continuous 270 seconds. the searched indoor quantity is less than
the set quantity
For continuous 170 seconds, the searched indoor quantity is more
than the set quantity
39
Remarks
Resumable
Resumable
Resumable
Resumable
Resumable
Resumable

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