Gree GWC36LB-K3NTA5A - E6 Malfunction Troubleshooting

36
Installation and Maintenance
Service Manual
9.2.5 E6 Malfunction
Start
Is the communication wire
poorly connected?
Is there incorrect match between main
board and display panel,or between
indoor and outdoor boards?
Is there incorrect wire
connection?
Replace the main
board
End
No
No
No
Please connect
the
communication
wire
Malfunction is
eliminated
Yes
No
Connect the wires
correctly
Find out the
matched controller
Malfunction is
eliminated
Yes
No
Malfunction is
eliminated
Yes
No
Yes
Yes
Yes
Poor contact of any wire may lead to
communication malfunction