Gree GMV5E Series Service Manual page 164

GREE
2.2.4.31 "C5" IDU project code conflict
Error display: debugging software and long-distance monitoring software will display
Error judgment condition and method:
Check IDU project code. All IDUs with the same project codes will report this error. But this error will
be displayed and require elimination only when debugging software, central controller and long-distance
monitoring software are connected.
When it is not in central control, it will not affect the operation of this indoor unit and the whole unit
even if there is project code conflict.
Possible reason:
■Project code settings are identical;
■IDU mainboard is replaced by the mainboard that is ever used in other system;
Troubleshooting:
You can reset the conflict IDU project codes through the following ways:
Reset project codes through debugging software;
Reset project codes through wired controller;
Reset project codes through debugging remote controller;
Reset this mainboard through the reset button on IDU mainboard and let the system reallocate the
code.
2.2.4.32 "C6" Outdoor unit quantity inconsistency warning
Error display: ODU mainboard, IDU wired controller and IDU receive light board will
display
Error judgment condition and method:
The system detects online outdoor module quantity in real time. When it is detected that current
module quantity is inconsistent with the memorized module quantity in debugging, the unit will report this
error and stop operation for protection.
Possible reason：
■Communication between modules is abnormal;
■Module is not energized;
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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