Airwell AWAU-YDV1010-H13, Руководство по обслуживанию

Страница: 169 / 187

167
Failure code
Outdoor
digital
display tube:
118-0, 1
Indoor wired
controller:
76
Indoor unit LED status
LED5 Failure description:
Start failure of module 1 and 2
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 compressor is
insecurely connected;
◆
Check the system for
liquid shock and poor heat
dissipation.
◆
Check if the compressor
and modules are well.
◆
Check if the inverter board
and module is insecurely
connected or inserted.
3. Abnormity confirmation
conditions
The module is found with
limiting current or overheating
protection.
4. Possible causes
◆
The inverter board and
module are wired insecurely,
which results in failure alarm
due to failure to detect
compressor rotation speed.
◆
The compressor or the
power module is damaged.
Check if the cooling fan can operate.
Check if the heat transfer of
cooling system is normal.
Check if the power module is normal.
Check if the communication circuit
s between the variable frequency
board and module as well as the
communication loop is normal.
Check if the winding and insulation
of compressor is normal.
Replace and compare the
neighboring electrical cabinet
by troubleshooting.
Check the corresponding
installation environment.
Adjust or replace the cooling
fan to allow operation.
Replace the power module.
Replace the variable frequency
board or secure the connection
wire.
Replace the compressor.
Y
Y
Y
Y
Y
N
N
N
N
N