Lennox VE2C009N432U, Installation Manual, Page: 28 / 32

Multi Variable Air Conditioners Two-way Cassette Type Indoor Unit
23
7 Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0 Indoor Unit Error LA
Indoor Units Incompatibility
Error
d9 Jumper Cap Error
L1
Indoor Fan
Protection
LH Low Air Quanlity Warning dA
Indoor Unit Network Address
Error
L2 E-heater Protection LC
ODU-IDU Incompatibility
Error
dH Wired Controller PCB Error
L3
Water Full
Protection
d1 Indoor Unit PCB Error dC
Capacity DIP Switch Setting
Error
L4
Wired Controller
Power Supply
Error
d3
Ambient Temperature
Sensor Error
dL Indoor Unit CO
2
Sensor Error
L5 Freeze protection d4
Inlet Pipe Temperature
Sensor Error
dE
Capacity DIP Switch Setting
Error
L7
No Master Indoor
Unit Error
d6
Outlet Pipe Temperature
Sensor Error
db
Special Code: Field
Debugging Code
L8
Power Insufficiency
Protection
d7 Humidity Sensor Error C0 Communication Error
L9
Quantity Of Group
Control Indoor
Units Setting Error
d8
Water Temperature Sensor
Error
AJ Filter Cleaning Reminder
o1
Low busbar volage
of indoor unit
o2
High busbar volage of indoor
unit
o3
IPM Module Protection of
Indoor Unit
o4
Failure Startup of
Indoor Unit
o5
Overcurrent Protection of
Indoor Unit
o6
Current Detection Circuit
Malfunction of Indoor Unit
o7
Desynchronizing
Protection of
Indoor Unit
o8
Communication Malfunction
of Indoor Unit’s Drive
o9
Communication Malfunction
of Main Mater of Indoor Unit
oA
Overtemprature of
Indoor Unit’s
Module
ob
Malfunction of Temperature
Sensor of Indoor Unit’s
Module
oC
Charging Circuit Malfunction
of Indoor Unit
o0
Other Drive
Malfunction
db Special Code: Field Debugging Code