Gree GMV5E Series User Manual

GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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Error judgment condition and method:
During commissioning, check if ODU cut-off valve is opened through detecting system parameter by
pressure sensor. If the parameter is abnormal, it will indicate that confirming the open of cut-off valve and
then press SW5 to enter the next step after confirming.
Possible reason：
■ODU cut-off valve is not opened;
Troubleshooting:
Confirm again and open ODU cut-off valve.
2.2.4.136 “U8” IDU pipeline error
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will
display
Error judgment condition and method:
During commissioning, check if IDU pipeline is blocked through detecting IDU pipeline. If the
parameter is abnormal, it will indicate t
Possible reason：
■Electronic expansion valve doesn’t operate normally;
■IDU pipeline is blocked;
Troubleshooting:
2.2.4.137 “U9” ODU pipeline error
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will
display
Error judgment condition and method:
During commissioning, check if ODU pipeline is blocked through detecting system pressure. If the
parameter is abnormal, it will indicate this error.

Gree GMV5E Series Specifications

General

Brand	Gree
Model	GMV5E Series
Category	Air Conditioner
Language	English