1 0 4 *
Communication Error Between Master Outdoor
Unit and Other Outdoor Unit
Failing to receive Slave Unit signal at main PCB of Master Outdoor
Unit
1 1 3 *
Master Outdoor Unit Liquid pipe Temperature
Sensor Error
Liquid pipe temperature sensor of Master Outdoor Unit is open or
short
1 1 5 *
Master Outdoor Unit Subcooling Outlet Tempera-
ture Sensor Error
Master Outdoor Unit Subcooling Outlet Temperature Sensor open or
short
1 1 6 * Master Outdoor Unit Oil Level Sensor Error
Oil Level Sensor of Master Outdoor Unit is open or short
1 4 5 *
Master outdoor unit Main Board - External Board
communication Error
Master outdoor unit Main Board - External Board communication
Error
1 5 1 *
Failure of operation mode conversion at Master
Outside Unit
Failure of operation mode conversion at Master
Outside Unit
1 8 2 * Communication error between MICOMs
Communication error between main MICOM and sub MICOM
58
Outside Unit
Test Run
Display
Title
Cause of Error
4
0
*
Master outside unit inverter compressor CT sen-
sor error
Master outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
4
1
*
Master outside unit inverter compressor dis-
charge temperature sensor error
Master outside unit inverter compressor discharge temperature sen-
sor disconnection or short circuit
4
2
*
Master Outdoor Unit Low Pressure Sensor Fault
Master Outdoor Unit Low Pressure Sensor open or short
4
3
*
Master Outdoor Unit High Pressure Sensor Fault Master Outside Unit High Pressure Sensor open or short
4
4
*
Master Outside unit air temperature sensor error Master Outside unit air temperature sensor disconnection or short circuit
4
6
*
Master outside unit suction temperature sensor error
Master outside unit suction temperature sensor disconnection or
short circuit
4
9
*
Master outside unit IGBT temperature sensor error
Master out side unit IGBT temperature sensor disconnection or
short circuit
5
0
*
Master outside unit 3 phase power missing
Master outside unit power line phase missing
5
1
*
Over-capacity (Indoor unit capacity sum is exces-
sive) connection
Excessive connection of indoor unit connection display value
(Different from outside unit)
5
2
*
Communication error with master outside unit in-
verter controller
When the inverter controller signal is not received from the master
outside unit inverter controller
5
3
*
Communication error with master Outside unit
controller and indoor unit
When the indoor unit control signal is not received from the master
Outside unit controller
5
7
*
Communication error between Master outside
unit inverter controller
Failing to receive inverter contoroller signal at Master Outdoor Unit
controller
5
9
*
Mixing Installation of Sub Outdoor Unit
Mixing Installation of Old Sub Outdoor Unit and New Slave Outdoor Unit
6
0
*
Master outside unit inverter PCB EEPROM error
Master outside unit inverter PCB EEPROM ACCESS error
6
2
*
Master outside unit inverter IGBT over-rise error Master outside unit inverter IGBT when the temperature rises above 110 ℃
6
5
*
Master outside unit inverter IGBT temperature
sensor error
Master outside unit inverter IGBT temperature sensor disconnection
or short circuit
7
1
*
PFC CT Sensor Error of Master Outdoor Unit
Master Outdoor Unit PFC CT Sensor open or short
8
6
* Master outside unit master PCB EEPROM error
Communication error between master outside unit master MICOM
and EEPROM or EEPROM missing
8
8
* PFC PCB EEPROM error
Communication error between master outside unit master PFC and
EEPROM or EEPROM missing
Outside Unit related Error
MFL67705803 2018. 9. 17. 오오 12:58 Page 58
