137
FFailure
code
Outdoor
digital
display tube:
32-0, 1
Indoor wired
controller:
20
Indoor unit LED status
LED5
Failure description:
Defrosting temperature sensor failure:
Tsco and Tliqsc
20 times
Outdoor unit LED status
LED1
LED2
Normal
Normal
1. Model
Failure diagnosis and troubleshooting
Flow Logic III series
Diagnosis
Troubleshooting
2. Abnormity detection method
◆
Check if the sensor
connection is normal;
◆
Check if resistance
characteristic of the sensor is
normal;
◆
Check if the temperature
loop acquired by the PCB is
abnormal.
3. Abnormity confirmation
conditions
It is detected that the AD value
is below 11 (open circuit) or
above 1012 (short circuit)
for 60 seconds continuously,
the cooling mode operates
the sensor abnormity without
troubleshooting it, and no
alarm is given during defrosting
and within 3 minutes at the end
of defrosting.
4. Possible causes
◆
The connection of sensor is
not secure;
◆
The sensor is broken;
◆
The sensor is with
resistance drift;
◆
The temperature acquired
by PCB is not accurate.
ReReplace it correctly by after-
sales personnel on site.
Check if the corresponding
connector of sensor is
normal
Check if resistance
temperature characteristic of
the sensor is normal
Check if the temperature loop
acquired by the computer
board is abnormal
Replace it correctly by after-
sales personnel on site.
Replace it correctly by after-
sales personnel on site.
N
N
N
Y
Y
Содержание AWAU-YDV1010-H13
Страница 1: ...SYJS 03 2017 REV A Edition 2017 03 Service Manual Flow Logic III...
Страница 56: ...54 7 Operation range...
Страница 102: ...100 Power module driver board 0151800090B and 0151800090...
Страница 103: ...101 Filter board MHW505A012...
Страница 187: ...Airwell reserves the right to make change without any notice...