Multi Variable Air Conditioners Cassette Type Indoor Unit
19
7 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 Sensor
Error
L1 Indoor Fan Protection LA
Indoor Units Incompatibility
Error
d9 Jumper Cap Error
L2 E-heater Protection LH Low Air Quanlity Warning dA
Indoor Unit
Hardware Address Error
L3 Water Full Protection LC
Outdoor-Indoor Incompatibility
Error
dH
Wired Controller PC-Board
Error
L4
Wired Controller Power
Supply Error
d1 Indoor Unit PC-Board Error dC
Capacity DIP Switch Setting
Error.
L5 Anti-Frosting 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
Indoor Unit CO
2
Sensor
Error
L8
Power Insufciency
Protection
d6
Outlet Pipe Temperature
Sensor Error
db
Special Code:
Field Debugging Code
8 Troubleshooting
The air conditioner is not expected to be serviced by users. Incorrect repair may cause electric
shock or re, so please contact an authorized service center for professional service. The following
checks prior to contact may save your time and money.
Phenomenon Troubleshooting
The unit can’t start
①
Power supply is not connected.
②
Circuit breaker tripping caused by leakage of electricity.
③
Input voltage is too low.
④
Defect of main PC-board.
The unit stops after running
for a while.
①
The inlet or outlet of ODU or IDU are blocked by obstacle.
Poor cooling effect
①
The lter is dirty.
②
Too heavy heat load of room(e.g. too many people)
③
Door or windows is open.
④
Inlet and outlet of IDU are blocked.
⑤
Setting temperature is too high.
⑥
Refrigerant is insufcient (e.g. refrigerant leakage)
Poor heating effect
①
The lter is dirty.
②
Door or window is open.
③
Setting temperature is too low.
④
Refrigerant is insufcient (e.g. refrigerant leakage)
Indoor fan doesn’t start
up during heating
①
At starting, the IDU fan could not operate till the heat exchange become
hot, for preventing delivering the cool air.
②
At defrosting, the IDU fan stopped due to system switch to cooling
mode. for preventing delivering the cool air, and resume operating after
defrosting.
Notes:
If air conditioner still fails to work normally after checking and handling as described above, please
stop using it immediately and contact local service center for assistance.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
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