Airwell AWAU-YDV1010-H13, Service Manual

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150
Failure code
Outdoor
digital
display tube:
71-0, 1
Indoor wired
controller:
47
Indoor unit LED status
LED5 Failure description:
Fan motor 1 blocked (left fan)
Fan motor 2 blocked (right fan) 20 times
Outdoor unit LED status
LED1 LED2
Normal Normal
1. Model Diagnosis and troubleshooting
Flow Logic III series
Diagnosis Troubleshooting
2. Abnormity detection method
◆
Check if the connection wire
is correct
◆
Check if the motor fan is
with friction;
◆
Check if the DC input of
motor is correct.
3. Abnormity confirmation
conditions
Make failure confirmation three
times per hour as follows:
below 20rpm, operate for 30s
or below 70% of target value,
operate for 2min, shut down
2min and automatically recover
after 50s.
4. Possible causes
◆
Insufficient power supply,
which causes motor with lower
or higher voltage input;
◆
The rotating speed of
fan decreases affected by
resistance.
Check if the wire harness of fan is
connected correctly.
Check if the connection wire
of fan is connected correctly.
Check if the fan can operate and
check if there is resistance when
rotating the fan manually.
Test if the fan is with 310V DC input.
Check if the power supply is with 220V input.
Replace the interface board of outdoor unit.
Replace it correctly by after-
sales personnel on site.
Replace it correctly by after-
sales personnel on site.
Check the power supply and adjust
it correctly.
Replace the motor.
Check the power supply and adjust
it correctly.
Y
Y
Y
N
N
N
N
N
Y
Y