172
Failure code
Outdoor
digital
display tube:
122-0, 1
Indoor wired
controller: 7A
Indoor unit LED status
LED5
Failure description:
The temperature sensors of radiator of
inverter control board 1 and 2 are abnormal
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 temperature
acquisition circuit of inverter
board is normal.
◆
Check if the resistance of
temperature sensor is normal.
◆
Check if they are connected
correctly
3. Abnormity confirmation
conditions
The temperature sensor is
disconnected or the resistance
is incorrect.
4. Possible causes
◆
The resistance of
temperature sensor is found
with drift.
◆
The inverter board acquires
inaccurate temperature.
C h e c k i f t h e s e n s o r a n d
variable frequency board is
connected correctly.
C h e c k i f t h e s e n s o r
resistance is normal.
Replace the variable
frequency board.
Replace the sensor.
A d j u s t t h e c o n n e c t i o n
between temperature sensor
and variable frequency
board.
Y
Y
N
N
Содержание AWAU-YDV1010-H13
Страница 1: ...SYJS 03 2017 REV A Edition 2017 03 Service Manual Flow Logic III...
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