GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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This code is the inquiry status code. In this case, online IDU quantity can be inquired.
Possible reason：——
Troubleshooting:
status code, no troubleshooting.
2.2.4.113 “nA” Heat pump unit
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is the heating only model status code, which indicates that the system has been set to
heating only unit status. The IDUs can operate in heating mode and cooling mode.
Possible reason：——
Troubleshooting:
status code, no troubleshooting.
2.2.4.114 “nH” Heating only model status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is the heating only model status code, which indicates that the system has been set to
heating only unit status. The IDUs can only operate in heating mode.
Possible reason：——
Troubleshooting:
status code, no troubleshooting.
2.2.4.115 “nC” Cooling only model status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is the heating only model status code, which indicates that the system has been set to
heating only unit status. The IDUs can only operate in cooling mode.
Possible reason：——
Troubleshooting:
status code, no troubleshooting.
2.2.4.116 “nE” Negative number code
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is the negative sign, which indicates that the followed displayed data is negative number.
Possible reason：——
Troubleshooting:
status code, no troubleshooting.
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