Table Of Error Codes For Indoor Unit; Troubleshooting - Gree GMV-NX140P/A X1.2-K Manuel D'utilisateur

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
Power Supply
L4
Overcurrent Protection
L5 Anti-freezing Protection
No Master Indoor Unit
L7
Error
Power Insufficiency
L8
Protection
Special Code:
db
Project Debugging Code

8 Troubleshooting

If your air conditioner is not working well, please check the following table first before asking for
service:
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
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.
Multi Variable Air Conditioners Duct Type Indoor Unit
Error
Content
Code
Quantity Of Group Control
L9
Indoor Units Setting Error
LA Indoor Units Incompatibility Error d9 Jumper Cap Error
LH Low Air Quality Warning
Outdoor-Indoor Incompatibility
LC
Error
d1 Indoor Unit Circuit Board Error
Ambient Temperature Sensor
d3
Error
Inlet Pipe Temperature Sensor
d4
Error
Outlet Pipe Temperature Sensor
d6
Error
Outlet Air Temperature Sensor
dL
Error
① Power supply is not connected
② Circuit breaker tripping caused by leakage of electricity
③ Input voltage is too low
④ Operation button is off
⑤ Error of control loop
① There is obstacle in front of condenser
② Error of control loop
③ Perform cooling when outdoor ambient temperature is higher than 43℃
① The filter is dirty or blocked
② Too heavy heat load of room(e.g. too many people)
③ Door or windows is open
④ Air inlet and outlet of IDU are blocked
⑤ Set temperature is too high or refrigerant leaks
⑥ The performance of room temperature sensor gets worse
① The filter is dirty or blocked
② Door or window is open
③ Set temperature is too low
④ Refrigerant leaks
⑤ Outdoor ambient temperature is lower than -5℃
⑥ Error of control circuit
① Position of tube temperature sensor is improper
② Tube temperature sensor is not inserted well
③ Wiring of tube temperature sensor breaks off
④ Electrical leakage of capacitor
23
Error
Code
Water Temperature Sensor
d8
Error
Indoor Unit
dA
Network Address Error
Wired Controller Circuit Board
dH
Error
Capacity DIP Switch Setting
dC
Error
dE Indoor Unit CO
C0 Communication Error
AJ Filter Cleaning Reminding
Troubleshooting
Content
Sensor Error
2