Gree GMV5E Series Service Manual page 226

Dc inverter vrf units
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GREE
Troubleshooting:
2.2.4.122 "P5" Inverter compressor overcurrent protection
Error display: ODU mainboard will display
Error judgment condition and method:
Check the error code on nixie tube of ODU main control board. If P5 is displayed, it indicates
inverter compressor overcurrent protection
Possible reason:
■Poor contact of compressor UVW wire;
■Connection sequence of compressor UVW wire is wrong;
■Compressor is broken;
■System is blocked;
■Compressor drive board IPM module is broken.
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
222

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