Table of Contents
Advertisement
Test Run
Display
* Master outside unit inverter compressor CT sen-
4
0
sor error
* Master outside unit inverter compressor dis-
4
1
charge temperature sensor error
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
4
9
* Master outside unit IGBT temperature sensor error
5
0
* Master outside unit 3 phase power missing
Over-capacity (Indoor unit capacity sum is exces-
5
1
*
sive) connection
Communication error with master outside unit in-
5
2
*
verter controller
Communication error with master Outside unit
5
3
*
controller and indoor unit
Communication error between Master outside
5
7
*
unit inverter controller
5
9
* Mixing Installation of Sub 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 temperature
6
5
*
sensor error
7
1
* PFC CT Sensor Error of Master Outdoor Unit
8
6
* Master outside unit master PCB EEPROM error
8
8
* PFC PCB EEPROM error
Communication Error Between Master Outdoor
1 0 4 *
Unit and Other Outdoor Unit
Master Outdoor Unit Liquid pipe Temperature
1 1 3 *
Sensor Error
1 1 5 * Master Outdoor Unit Subcooling Outlet Tempera-
ture Sensor Error
1 1 6 * Master Outdoor Unit Oil Level Sensor Error
Master outdoor unit Main Board - External Board
1 4 5 *
communication Error
1 5 1 * Failure of operation mode conversion at Master
Outside Unit
1 8 1 * Water temperature sensor error
1 8 2 * Communication error between MICOMs
52
52
Outside Unit
Outside Unit
Title
Cause of Error
Master outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Master outside unit inverter compressor discharge temperature sen-
sor disconnection or short circuit
Master outside unit suction temperature sensor disconnection or
short circuit
Master out side unit IGBT temperature sensor disconnection or
short circuit
Master outside unit power line phase missing
Excessive connection of indoor unit connection display value
(Different from outside unit)
When the inverter controller signal is not received from the master
outside unit inverter controller
When the indoor unit control signal is not received from the master
Outside unit controller
Failing to receive inverter contoroller signal at Master Outdoor Unit
controller
Mixing Installation of Old Sub Outdoor Unit and New Slave Outdoor Unit
Master outside unit inverter IGBT when the temperature rises above 110 ℃
Master outside unit inverter IGBT temperature sensor disconnection
or short circuit
Master Outdoor Unit PFC CT Sensor open or short
Communication error between master outside unit master MICOM
and EEPROM or EEPROM missing
Communication error between master outside unit master PFC and
EEPROM or EEPROM missing
Failing to receive Slave Unit signal at main PCB of Master Outdoor
Unit
Liquid pipe temperature sensor of Master Outdoor Unit is open or
short
Master Outdoor Unit Subcooling Outlet Temperature Sensor open or
short
Oil Level Sensor of Master Outdoor Unit is open or short
Master outdoor unit Main Board - External Board communication
Error
Failure of operation mode conversion at Master
Outside Unit
Water temperature sensor open/short
Communication error between main MICOM and sub MICOM
Hide quick links:
Advertisement
Table of Contents
