Table Of Error Codes For Indoor Unit; Troubleshooting - Gree GMV-ND224PH/A-T Owner's Manual

Multi Variable Air Conditioners Ducted Type Indoor Unit

7 Table of Error Codes for Indoor Unit

Error Code Content
L0 Indoor Unit Error
L1 Indoor Fan Protection
L2 E-heater Protection
L3 Water Full Protection
Wired Controller
L4
Power Supply Error
L5 Freeze protection
No Master Indoor
L7
Unit Error
Power Insufficiency
L8
Protection
Quantity Of Group
L9 Control Indoor Units
Setting 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 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 local service center for assistance.
Error Code
Indoor Units
LA
Incompatibility Error
LH Low Air Quality Warning
ODU-IDU Incompatibility
LC
Error
d1 Indoor Unit PCB Error
Ambient Temperature
d3
Sensor Error
Inlet Pipe Temperature
d4
Sensor Error
Outlet Pipe Temperature
d6
Sensor Error
d7 Humidity Sensor Error
d8 Water Temperature Error
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 Error Code
Troubleshooting
20
Content
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
2
dE
Error
Water Temperature
dy
Sensor Error
C0 Communication Error
AJ Filter Cleaning Reminder
Sensor