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every two weeks).
6.2 Maintenance before the Seasonal Use
(1) Check if the air inlet and air outlet of indoor and outdoor unit are blocked.
(2) Check if securely grounded.
(3) Check if all the power cord and communication cable are securely connected.
(4) Check if any error code displayed after energized.
6.3 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.
7 Table of Error Codes for Indoor Unit
Error
Content
Code
L0
Indoor Unit Error
Indoor Fan
L1
Protection
L2
E-heater Protection
Water Full
L3
Protection
Wired Controller
L4
Power Supply Error
Anti-Frosting
L5
Protection
No Master Indoor
L7
Unit Error
Power Insufficiency
L8
Protection
Troubleshooting
The air conditioner is not expected to be serviced by users. Incorrect repair may cause electric
shock or fire, so please contact an authorized service center for professional service. The following
checks prior to contact may save your time and money.
Error
Content
Code
Quantity Of Group Control
L9
Indoor Units Setting Error
Indoor Units Incompatibility
LA
Error
LH
Low Air Quality Warning
Outdoor-Indoor Incompatibility
LC
Error
d1
Indoor Unit PC-Board Error
Ambient Temperature Sensor
d3
Error
Inlet Pipe Temperature Sensor
d4
Error
Outlet Pipe Temperature
d6
Sensor Error
Error
Code
d8
d9
dA
dH
dC
dL
dE
db
16
GMV DC Air Handler
Content
Water Temperature Sensor
Error
Jumper Cap Error
Indoor Unit
Hardware Address Error
Wired Controller PC-Board
Error
Capacity DIP Switch Setting
Error.
Outlet Air Temperature
Sensor Error
Indoor Unit CO
Sensor
2
Error
Special Code:
Field Debugging Code
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