131
Failure code
Outdoor
digital
display tube:
26-0, 1, 2
Indoor wired
controller:
1A
Indoor unit LED status
LED5
Failure description:
Communication between indoor unit and
outdoor unit failure
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
◆
Grounded short-circuit
of communication wire, or
disconnected communication
wire P and Q;
◆
Incorrect wiring of
communication wire P and Q;
◆
Uniform indoor unit power
supply, and partial indoor unit
being powered off.
◆
Larger interference and
unstable communication signal.
◆
Failure in PCB of indoor and
outdoor unit results in unstable
communication.
3. Abnormity confirmation
conditions
It is not detected that there
is indoor unit connection for
200 rounds continuously; it
is detected that the number
of indoor units is less than
set number for 270 seconds
continuously; it is detected that
the number of indoor units is
more than set number for 170
seconds continuously.
4. Possible causes
◆
Poor communication wire:
short circuit and disconnection;
◆
Incorrect wiring of
communication wire P and Q P
and Q;
◆
Poor PCB results poor
communication;
◆
Larger interference of
normal communication.
Replace it correctly by after-
sales personnel on site.
Check if the communication
wire of outdoor unit is shorted
Check if the communication wire
of outdoor unit is disconnected
Check if the communication
wire P and Q of indoor and
outdoor unit is incorrect
Check if there is same indoor unit No.
Replace indoor or outdoor computer board
Check if the computer board
communication port of indoor
and outdoor unit is correct
Check if there is interference source
Replace it correctly by after-
sales personnel on site.
Replace it correctly by after-
sales personnel on site.
Adjust it correctly by after-
sales personnel on site.
Adjust it correctly by after-
sales personnel on site.
Eliminate the interference
source.
Y
N
N
N
N
N
Y
Y
Y
Y
N
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...