118
16. Failure code
Master unit
digital tube
display
failure
code
Failure code
definition
Failure description
Remarks
20-0
Defrosting temp.
sensor Tdef1 failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, sensor has no alarm when
abnormal in cooling mode.
Resumable
20-1
Defrosting temp.
sensor Tdef2 failure
21
Ambient temp.
sensor Ta failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, sensor has no alarm when
abnormal in cooling mode.
Resumable
22-0
Suction temp.
sensor Ts1 failure
22-1
Suction temp. sensor
Ts2 failure
22-2
Suction temp. sensor
Tsacc failure
22-3
Suction temp. sensor
Tsuc failure
If AD value is over 1012 (short circuit) for 60 seconds,
alarm. AD value is below 11 (open circuit) for 60
seconds, If Tao<0
℃
, there is no open circuit alarm. If
Tao>=0
℃
and ET<0, there is no alarm. ET>=0
℃
,for 5
minutes, alarm. sensor has no alarm when abnormal in
cooling mode.
23-0
Discharging temp.
sensor Td1failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds. If Tao≤0
℃
, no need to detect the
open circuit failure (AD value is below 11.)
Resumable
23-1
Discharging temp.
sensor Td2 failure
24-0
Oil temp. sensor
Toilp failure
If AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, alarm. If Tao<0
℃
, there is no
open circuit alarm. If Tao>=0
℃
and ET>=0
℃
, no open
circuit alarm within 5 minutes.
Resumable
24-1
Oil temp. sensor
Toil1 failure
If AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, alarm. If Tao<0
℃
, there is no
open circuit alarm.
24-2
Oil temp. sensor
Toil2 failure
25-0
Heat exchanger
inlet temp. Toci1
failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, sensor has no alarm when
abnormal in cooling mode.
Resumable
25-1
Heat exchanger
inlet temp.Toci2
failure
26-0
Outdoor unit
and indoor unit
communication
failure
Not finding connected indoor units for continuous 200
cycles
Resumable
26-1
The searched indoor unit quantity is less than the set
quantity for continuous 270 seconds
26-2
The searched indoor unit quantity is more than the set
quantity for continuous 170 seconds
Содержание AWAU-YDV1010-H13
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