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GREE
Troubleshooting:
2.2.4.79 "H5" Inverter fan 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 H5 is displayed, it indicates
inverter fan overcurrent protection
Possible reason：
■Poor contact of fan UVW wire
■Fan is broken
■Fan blade is blocked (Fan blade is blocked and motor shaft is rusty)
■Fan drive board is abnormal
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
195
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