Common Malfunctions And Troubleshooting - Gree GMV-280WL/C1-X Owner's Manual

DC Inverter Multi VRF System
No. Debug item
7
parameters
8
System
parameters
9
10
11
parameters
12
Communication
13
parameters
14 Drainage system
15 Others

6 Common Malfunctions and Troubleshooting

WARNING:
① If an abnormal situation (such as peculiar smell) occurs, please stop the operation
immediately and turn off the main power supply, and then contact Gree authorized
maintenance center. If the unit continues to operate under abnormal situation, the air
conditioner will be damaged and an electric shock or fire accident may result.
② Do not maintain the air conditioner by yourself, misoperation may cause electric shock or fire
hazard. Please contact professional personnel of Gree authorized maintenance center to
maintain.
● Before asking for maintenance, please check the following issues first.
Problems
Unit doesn't work.
Parameter name
Compressor
working current
ODU
Compressor's
IPM temp
IDU ambient temp
Indoor heat
exchanger's inlet
temp
Indoor heat
IDU
exchanger's inlet
temp
Opening degree
of indoor EXV
Communication
data
—
—
Fuse or circuit breaker is cut off.
Power failure.
Power supply is not connected
Remote controller's power is not enough.
Remote controller is out of the control range.
Unit
GMV-H224WL/A-X
GMV-224WL/C-X
GMV-H280WL/A-X
— GMV-280WL/C-X
GMV-280WL/C1-X
GMV-H335WL/A-X
GMV-335WL/C-X
GMV-335WL/C1-X
When ambient temperature is below 35°C, IPM
°C temperature is lower than 70°C. Maximum
temperature is 80°C.
°C —
 According to ambient temp, for a same IDU in
°C
cool mode, the inlet temp will be 1~7°C lower
than the outlet temp, and 4~9°C higher than the
low pressure value.
 For a same IDU in heat mode, the inlet temp will
°C
be 10~20°C lower than the outlet temp.
 In cool mode, the opening degree of indoor EXV
varies within 40~480PLS.
PLS
 In heat mode, the opening degree of indoor EXV
varies within 70~480PLS.
Number of IDUs detected by software is the same
—
with the actual number. No communication error.
Indoor unit can drain water out completely and
smoothly. Condensate pipe has no backward slope
— of water; Water of outdoor unit can be drained
completely through drainage pipe. No water drop
from unit base.
Compressor and indoor/outdoor fan motor do not
—
have strange noise. Unit can operate normally.
Causes
26
Reference
When compressor works
normally, the current is no
more than 18.0A.
When compressor works
normally, the current is no
more than 23.0A.
When compressor works
normally, the current is no
more than 25.0A.
What to do
Replace fuse or reset the circuit
breaker.
Restart unit when power is
restored.
Connect the power.
Replace new battery.
Control range is within 8m.