GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
202
Troubleshooting:
2.2.4.88
“J0” Other module protection
Error display:
ODU mainboard will display
. IDU and IDU receive light board will not
display.
Error judgment condition and method:
In multiple modules system, if any module causes system stoppage, the modules without errors will
display this error to indicate other module has error, which causes unit stoppage.
Possible reason
：
■Other module has error for stoppage;
Troubleshooting:
Eliminate the error of other modules.
