Gree GMV6 DC Inverter VRF Units Service Manual
177
2.145 "nF" Fan Type Unit
Fault display:
main board of outdoor unit displays
Fault diagnosis:
The code indicates that the indoor unit only operates in fan mode.
Possible causes:
--
Troubleshooting:
not required.
2.146 “o3” IDU IPM module protection
Error display:
ODU main board and IDU wired controller will display
Applicable model:
external drive DC fan
Error judgment condition and method:
Check the error code on the display board, if it displays o3, that’s the IDU IPM module protection.
Possible reasons:
■
Contact of the fan UVW wire is poor.
■
The fan is damaged;
■
The fan blade is blocked (the fan blade is blocked and the motor shaft is rusty)
■
The fan drive board is abnormal;
Troubleshooting:
Summary of Contents for GMV-1015WM/G-U
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