GREE DC INVERTER HEAT PUMP CONDENSING UNIT SERVICE MANUAL
54
Troubleshooting
：
3.4.29 “AC” Outdoor fan startup failure
Error display:
ODU mainboard LED displayer
Error judgment condition and method:
Check the error code on nixie tube of ODU main control board. If PJ is displayed, it indicates
inverter compressor startup failure
Possible reason:
■Poor contact of outdoor fan UVW wire.
■Outdoor fan is broken.
■Outdoor fan drive board is broken.
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