Multi Variable Air Conditioners Ducted Type Indoor Unit
22
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 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
2
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 Bus bar Voltage of
Indoor Unit
o2
High Bus bar Voltage 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
High Temperature of Indoor
Unit’s Module
ob
Malfunction of Temperature
Sensor of Indoor Unit’s
oC
Charging Circuit
Malfunction of Indoor Unit
o0 Other Drive Malfunction db Special Code: Field Debugging Code
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