Multi Variable Air Conditioners Ducted Type Indoor Unit
20
8 The Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0 Indoor Unit Error L9
Quantity Of Group Control
Indoor Units Setting Error
d8
Water Temperature
Error
L1
LA
Indoor Units Incompatibility
Error
d9 Jumper Cap Error
L2 E-heater Protection LH Low Air Quality Warning dA
Indoor Unit Network
L3
Water Full
LC
ODU-IDU Incompatibility
dH
Wired Controller PCB
L4
Wired Controller
Power Supply Error
d1 Indoor Unit PCB Error dC
Capacity DIP Switch
Setting Error.
L5 Freeze protection d3
Ambient Temperature
Sensor Error
dL
Outlet Air Temperature
Sensor Error
L7
No Master Indoor
Unit Error
d4
Inlet Pipe Temperature
Sensor Error
dE
2
L8
Power Insufficiency
Protection
d6
Outlet Pipe Temperature
Sensor Error
C0 Communication Error
L0 Indoor Unit Error d7 Humidity Sensor Error AJ Filter Cleaning Reminder
o1
Low bus bar voltage
o2
High bus bar voltage of
o3
IPM Module Protection
o4
Failure Startup of
Indoor Unit
o5
Overcurrent Protection of
Indoor Unit
o6
Current Detection Circuit
Malfunction of Indoor
o7
Desynchronizing
Protection of Indoor
o8
Communication Malfunction
of Indoor Unit’s Drive
o9
Communication
Malfunction of Main
oA
High temperature of
Indoor Unit’s
ob
Malfunction of Temperature
Sensor of Indoor Unit’s
oC
Charging Circuit
Malfunction of Indoor
o0
Other Drive
db Special Code: Field Debugging Code