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112 Outdoor Unit
Display Title Cause of Error
Outdoor unit related error
1 5 3
1
Master upper part heat exchanger
temperature sensor error
Master Outdoor Unit upper part temperature sensor
open/short
2
Slave1 upper part heat exchanger
temperature sensor error
Slave1 Outdoor Unit upper part temperature sensor
open/short
3
Slave2 upper part heat exchanger
temperature sensor error
Slave2 Outdoor Unit upper part temperature sensor
open/short
1 5 4
1
Master lower part heat exchanger
temperature sensor error
Master Outdoor Unit lower part temperature sensor
open/short
2
Slave1 lower part heat exchanger
temperature sensor error
Slave1 Outdoor Unit lower part temperature sensor
open/short
3
Slave2 lower part heat exchanger
temperature sensor error
Slave2 Outdoor Unit lower part temperature sensor
open/short
1 7 3
1
Master Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric
break down at Master Outdoor Unit
2
Slave1 Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric
at Slave1 Outdoor Unit
3
Slave2 Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric
at Slave2 Outdoor Unit
1 7 4
1
Master outdoor unit rated speed 2
condenser over-current
Master Outdoor Unit rated speed 2 condenser burned
/ locked or fault by over-current
2
Slave1 outdoor unit rated speed 2
condenser over-current
Slave1 Outdoor Unit rated speed 2 condenser burned
/ locked or fault by over-current
3
Slave2 outdoor unit rated speed 2
condenser over-current
Slave2 Outdoor Unit rated speed 2 condenser burned
/ locked or fault by over-current
1 8 2
1
Master outdoor unit Main Board Main-Sub
Micom communication error
Master Outdoor Unit Main Board Main-Sub Micom com-
munication failed
2
Slave1 outdoor unit Main Board Main-Sub
Micom communication error
Slave1 Outdoor Unit Main Board Main-Sub Micom com-
munication failed
3
Slave2 outdoor unit Main Board Main-Sub
Micom communication error
Slave2 Outdoor Unit Main Board Main-Sub Micom com-
munication failed
1 8 4
1
Master Inv. oil balance pipe Temperature
Sensor error
Master Outdoor Unit oil balance temperature Sensor
open or short
2
Slave1 Inv. oil balance pipe Temperature
Sensor error
Slave1 Outdoor Unit oil balance temperature Sensor
open or short
3
Slave2 Inv. oil balance pipe Temperature
Sensor error
Slave2 Outdoor Unit oil balance temperature Sensor
open or short
1 8 5
1
Master const.1 oil balance pipe
Temperature Sensor error
Master Outdoor Unit oil balance temperature Sensor
open or short
2
Slave1 const.1 oil balance pipe
Temperature Sensor error
Slave1 Outdoor Unit oil balance temperature Sensor
open or short
3
Slave2 const.1 oil balance pipe
Temperature Sensor error
Slave2 Outdoor Unit oil balance temperature Sensor
open or short
Test Run
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