Interface - Gree U-MATCH Series Service Manual


H6 DC fan error

2.3 Interface

 Outdoor units Main Control Board
H6 is displayed on the wired
controller
H6 is displayed in the
mainboard 88 indicating
lamp
Is the motor phase
sequence right?
Yes
Is the Fan wire terminal
loose？
No
Replace the
mainboard.Does it
work normally?
No
Replace the outdoor fan
U-Match Series DC Inverter Service Manual
No
Adjust the motor
phase sequence
Tighten the fan
Yes
wiring terminal
Yes
Work normally
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