Gree GMV6 DC Inverter VRF Units Service Manual
2.119 "n9" Status of Querying Number of Online Indoor Units
Fault display: main board of outdoor unit displays
Fault diagnosis:
The code is a query status code, in which case you can query the number of online indoor units.
Possible causes: --
Troubleshooting:
not required.
2.120 "nA" Heating and Cooling Unit
Fault display: main board of outdoor unit displays
Fault diagnosis:
The code indicates that the indoor unit operates in both heating and cooling modes.
Possible causes: --
Troubleshooting: not required.
2.121 "nH" Heating Only Unit
Fault display: main board of outdoor unit displays
Fault diagnosis:
The code indicates that the indoor unit only operates in heating mode.
Possible causes: --
Troubleshooting: not required.
2.122 "nC" Cooling Only Unit
Fault display: main board of outdoor unit displays
Fault diagnosis:
The code indicates that the indoor unit only operates in cooling mode.
Possible causes: --
Troubleshooting: not required.
2.123 "nE" Negative Number Code
Fault display: main board of outdoor unit displays
Fault diagnosis:
The code is a negative number code. It indicates that the number following the code is a negative one.
Possible causes: --
Troubleshooting:
not required.
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