Gree GMV-Pdm450W/NaB-M

DC Inverter Multi
VRF Service Manual
157
14
Communication
among outdoor
modules is
abnormal.
“ E6” error code
will be displayed
on outdoor module
as well as the
indoor units which
are connected by
this patch board.
Address code and qty code of mainboard
of outdoor unit are not correctly set.
Check and reset them.
15
Communication wire among outdoor
units is not correctly connected.
Outdoor unit
Communication cable
A
B
PCB
A
B
Outdoor unit
Communication cable
A
B
PCB
A
B
Replace communication wire.