GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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2.2.4.117
“nF” Fan only model status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is the fan only model status code, which indicates that the system has been set to fan
only unit status. The IDUs can only operate in fan mode.
Possible reason
：——
Troubleshooting:
status code, no troubleshooting.
2.2.4.118
“P0” Compressor drive board error
Error display:
IDU wired controller will display
Error judgment condition and method:
Check error code through IDU wired controller. If IDU wired controller displays P0, please also
check the error code displayed on the nixie tube of ODU main control board. Detailed error of
compressor drive board can be judged according to the error code on main control board. Then arrange
troubleshooting accordingly.
Possible reason
：
■Compressor drive module reset protection (P3 is displayed on the nixie tube of ODU main control
board)
■Compressor drive temperature sensor error (P7 is displayed on the nixie tube of ODU main control
board)
■Compressor drive IPM high temperature protection (P8 is displayed on the nixie tube of ODU main
control board)
■Compressor drive current detecting circuit error (PC is displayed on the nixie tube of ODU main
control board)
■Compressor drive charging circuit error (PF is displayed on the nixie tube of ODU main control
board)
■Inverter compressor non-synchronism protection (P9 is displayed on the nixie tube of ODU main
control board)
■Inverter compressor startup failure (PJ is displayed on the nixie tube of ODU main control board)
Troubleshooting:
Find out corresponding solution according to the error code displayed on ODU mainboard.
2.2.4.119
“P1” Compressor drive board operation error
Error display:
IDU wired controller will display
Error judgment condition and method:
Check error code through IDU wired controller. If IDU wired controller displays P1, please also
check the error code displayed on the nixie tube of ODU main control board. Detailed error of
