Gree U-match Series

U-Match Series DC Inverter Service Manual
95
 H6 DC fan error
H6 is displayed in the
mainboard 88 indicating
lamp
Is the motor phase
sequence right?
Yes
Replace the
mainboard.Does it
work normally?
No
Replace the outdoor fan Work normally
Yes
Adjust the motor
phase sequence
Is the Fan wire terminal
loose？
Tighten the fan
wiring terminal
Yes
No
No
H6 is displayed on the wired
controller
2.3 Interface
 Outdoor units Main Control Board