Airwell AWAU-YDV1010-H13, Service Manual

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152
Failure code
Outdoor
digital
display tube:
73-0, 1
Indoor wired
controller:
49
Indoor unit LED status
LED5 Failure description:
Fan motor 1 overcurrent (left fan)
Fan motor 2 overcurrent (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 voltage input of
motor is correct.
3. Abnormity confirmation
conditions
Alarm to shut down if overcurrent
signal appears when the
rotating speed is set as below
400rpm for 10s; make failure
confirmation five times per hour.
4. Possible causes
◆
Excessive supply voltage;
◆
Larger static pressure of fan.
Y
Check if the wire harness of fan is
connected correctly.
Check if the voltage input of fan is excessive.
Check if the air outlet is blocked and
if there is resistance.
Check if the fan is with wind guide ring.
Check if the air outlet is blocked
and if there is resistance.
Check if there is resistance when
rotating the fan manually.
Adjust it correctly by after-sales
personnel on site.
Adjust the air outlet, to make the
air flow smooth.
Replace it correctly by after-
sales personnel on site.
Check the surrounding wind guide
ring and adjust it correctly.
Adjust the air outlet, to make the
air flow smooth.
Replace the motor.
Y
Y
Y
Y
N
Y
N
N
N
N