GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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2.2.4.127
“PC” Compressor drive current detecting circuit error
Error display:
ODU mainboard will display
Error judgment condition and method:
Check the error code on nixie tube of ODU main control board. If PC is displayed, it indicates
compressor drive current detecting circuit error
Possible reason
：
■Compressor drive board is abnormal
Troubleshooting:
2.2.4.128
“PH” Compressor drive DC bus high voltage protection
Error display:
ODU mainboard will display
Error judgment condition and method:
If the mainboard detects that input power cord voltage exceeds 460V, it will report high voltage
protection.
Possible reason
：
■Power supply voltage is higher than 460V;
■Compressor drive board is abnormal.
Troubleshooting:
2.2.4.129
“PL” Compressor drive DC bus low voltage protection
Error display:
ODU mainboard will display
