Multi Variable Air Conditioners Ducted Type Indoor Unit
24
7.3 Maintenance after the Seasonal Use
(1) Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit.
(2) When the unit won’t be used for a long time, please cut off power supply for energy saving;
the characters on the wired controller screen will disappear after cutting off the power
supply.
8 Table of Error Codes for Indoor Unit
Content
Content
Content
L0 Indoor Unit Error LA
Indoor Units Incompatibility
Error
d9 Jumper Cap Error
L1
LH Low Air Quality Warning dA
Indoor Unit Network
Address Error
L2 E-heater Protection LC
ODU-IDU Incompatibility
Error
dH
Wired Controller PCB
Error
L3
d1 Indoor Unit PCB Error dC
Capacity DIP Switch
Setting Error.
L4
Wired Controller
Power Supply Error
d3
Ambient Temperature
Sensor Error
dL
Outlet Air Temperature
Sensor Error
L5 Freeze protection d4
Inlet Pipe Temperature
Sensor Error
dE
2
L7
No Master Indoor
Unit Error
d6
Outlet Pipe Temperature
Sensor Error
C0 Communication Error
L8
Power Insufficiency
Protection
d7 Humidity Sensor Error AJ Filter Cleaning Reminder
L9
Control Indoor Units
d8 Water Temperature Error
o1
Low bus bar voltage of
indoor unit
o2
voltage of indoor
o3
IPM Module Protection of
Indoor Unit
o4
Failure Startup of
Indoor Unit
o5
Protection of
o6
Current Detection Circuit
Malfunction of Indoor
o7
Protection of Indoor
o8
Malfunction of
Indoor Unit’s
o9
Communication
Malfunction of Main
Mater of Indoor Unit
oA
High temperature of
Indoor Unit’s Module
ob
Temperature
Sensor of Indoor
oC
Charging Circuit
Malfunction of Indoor
Unit
o0
Other Drive
Malfunction
Special Code: Field Debugging Code
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