GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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Troubleshooting:
2.2.4.103 “L9” Group-controlled IDU quantity inconsistency
Error display:
IDU wired controller and IDU receive light board will display
Error judgment condition and method:
If the IDU quantity connected with wired controller exceeds 16 sets or actually connected IDU
quantity is inconsistent with the set group-controlled IDU quantity.
Possible reason：
■IDU quantity connected with one wired controller exceeds 16 sets;
■Actually connected IDU quantity is inconsistent with the set group-controlled IDU quantity.
Troubleshooting:
2.2.4.104”LA” Group-controlled IDU series inconsistency
Error display:
IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Wired controller detects that the IDUs connected with itself belong to different series.
Possible reason：
■IDUs connected with one wired controller belong to different series.
Troubleshooting:
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