Airwell AWAU-YDV1010-H13, Service Manual

Page: 163 / 187

161
Failure code
Outdoor
digital
display tube:
112-0, 1, 1
Indoor wired
controller:
70
Indoor unit LED status
LED5 Failure description:
Radiator temperature of module 1 and 2 is
too high. 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 radiator is in
normal conditions;
◆
Check if the cooling fan is in
normal conditions;
◆
Check if the radiator sensor
is in normal conditions.
3. Abnormity confirmation
conditions
Raise failure alarm when
temperature ≥94°C .
INV control board recovers
automatically when
temperature ≤94°C .
4. Possible causes
◆
The module is insecurely
fixed, which results in poor
heat dissipation;
◆
The radiator sensor is
broken which results in high
detection temperature;
◆
The cooling fan fails to
operate;
◆
There is no 220V output
from the terminal of cooling fan
of PCB.
Check if the cooling fan rotates
and the sensor is normal
Check if the module is
secured and the cooling
silica gel is even up
Check if 110, 113 and 114
failure is found
Troubleshoot each failure
Secure the module and paint
with radiating silica gel evenly.
Troubleshoot and replace the
power module.
Troubleshoot the fan and PCB
terminal for 220V voltage output.
Y
Y
Y
N
N
N