135
Failure code
Outdoor
digital
display tube:
30-0, 1
Indoor wired
controller:
1E
Indoor unit LED status
LED5
Failure description:
High pressure switch disconnection 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
◆
Check if the pressure switch
connection is normal;
◆
Check if the pressure switch
signal loop acquired by the
PCB is normal;
◆
Check if the pressure switch
is turned off usually and the
pressure exceeds 4.0MPa
when disconnection;
◆
Check if the high pressure
side of the system is blocked;
◆
Check the outdoor fan for
normal operation when cooling.
3. Abnormity confirmation
conditions
The high pressure switch is
turned off for 2s.
4. Possible causes
◆
The connection of pressure
switch is not secure;
◆
Pressure switch is broken;
◆
The pressure switch
signal acquired by the PCB is
incorrect;
◆
The high pressure side of
the unit is blocked;
◆
The outdoor fan stops
operating when cooling;
◆
The refrigerant is excessive;
◆
It is out of the operating
range of units.
Replace it correctly by after-
sales personnel on site.
Check if the corresponding connector
of pressure switch is normal
Check if the pressure switch
signal loop acquired by the
computer board is normal
Check if the high pressure reaches 4.0MPa
when the pressure switch is turned off
Check if the high pressure stop
valve is turned on or the high
pressure side is blocked
Check if it is out of the operating range of units.
Check the outdoor fan for
normal operation when cooling
Check if the refrigerant is excessive
Replace it correctly by after-
sales personnel on site.
Rectify it correctly by after-
sales personnel on site.
Rectify it correctly by after-
sales personnel on site.
Rectify it correctly by after-sales
personnel on site.
[Note] Confirm if non-condensable
gases enter the system.
Notify the user to use it within the
operating range of units by after-
sales personnel.
N
N
N
Y
Y
Y
Y
Y
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...