Table Of Error Codes For Indoor Unit; Troubleshooting - Gree GMV-ND28TD/A-T Owner's Manual

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

7 Table of Error Codes for Indoor Unit

Error
Content
Code
L0 Indoor Unit Error
L1 Indoor Fan Protection
L2 E-heater Protection
L3 Water Full Protection
Wired Controller Power
L4
Supply Error
L5 Freeze Protection
No Master Indoor Unit
L7
Error
Power Insufficiency
L8
Protection
Quantity of Group Control
L9
Indoor Units Setting Error
db

8 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.
Phenomenon
The unit can't start
The unit stops after
running for a while.
Poor cooling effect
Poor heating effect
Indoor fan doesn't
start up during
heating
NOTE!
If air conditioner still fails to work normally after checking and handling as described above, please
stop using it immediately and contact our designated dealer or local service center.
Error
Code
LA
LH
LC
d1
d3
d4
d6
d7
d8
Special Code: Field Debugging Code
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.
① The inlet or outlet of ODU or IDU are blocked by obstacle.
① The filter 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 insufficient (e.g. refrigerant leakage).
① The filter is dirty.
② Door or window is open.
③ Setting temperature is too low.
④ Refrigerant is insufficient (e.g. refrigerant leakage).
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.
Content
Indoor Units
Incompatibility Error
Low Air Quality Warning
ODU-IDU Incompatibility
Error
Indoor Unit PCB Error
Ambient Temperature
Sensor Error
Inlet Pipe Temperature
Sensor Error
Outlet Pipe Temperature
Sensor Error
Humidity Sensor Error
Water Temperature Error
Troubleshooting
22
Error
Content
Code
d9 Jumper Cap Error
Indoor Unit Network
dA
Address Error
Wired Controller PCB
dH
Error
Capacity DIP Switch
dC
Setting Error.
Outlet Air Temperature
dL
Sensor Error
Indoor Unit CO
dE
Error
Water Temperature
dy
Sensor Error
C0 Communication Error
AJ Filter Cleaning Reminder
Sensor
2