157
Failure code
Outdoor
digital
display tube:
79
Indoor wired
controller:
4F
Indoor unit LED status
LED5
Failure description:
Operation protection of incorrect wiring.
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
◆
Confirm operation of
incorrect wiring
3. Abnormity confirmation
conditions
After 30-minute detection on
incorrect wiring, for outdoor
units: display the failure code
when Td2 <=Tao+30K; for
indoor units: display the failure
code when cooling Tc2>=Tai-
20K; display the failure code
when heating Tc1<=Tai+20K.
4. Possible causes
◆
The wire connection of
outdoor and indoor units are
wrong during installation.
Check if the failure alarm
meets the alarm requirements
for incorrect wiring
Check if the detection
values of temperature
sensors are correct.
Confirm the outdoor and
i n d o o r u n i t s a r e w i r e d
correctly and rectify by after-
sales personnel.
Rectify on site by after-sales
personnel.
Y
Y
N
Summary of Contents for AWAU-YDV1010-H13
Page 1: ...SYJS 03 2017 REV A Edition 2017 03 Service Manual Flow Logic III...
Page 56: ...54 7 Operation range...
Page 102: ...100 Power module driver board 0151800090B and 0151800090...
Page 103: ...101 Filter board MHW505A012...
Page 187: ...Airwell reserves the right to make change without any notice...
