Troubleshooting Flow Chart Of Drive Malfunction - Gree U-MATCH Series Service Manual

 E8 Malfunction of Indoor Fan Motor

2.2 Troubleshooting Flow Chart of Drive Malfunction

Note: For Outdoor Unit Drive (Inverter) by Single-phase Motor
P0 Drive module reset
 P7 IPM or PFC temperature sensor error
 PA AC current protection (input side)
 PC Current sense circuit error
 HC PFC protection（42\48k\60k only）
Malfunction of
indoor fan motor
Check if the
control wire of indoor fan motor is
connected on the outdoor
mainboard correctly
Yes
Replace
the indoor fan motor and then
restart the unit to see if there still
is malfunction of indoor
fan motor
Yes
Replace the
indoor
mainboard
P0、P7、PA、Hc or
PC is displayed on
the wired controller
P0、P7、PA、Hc or
PC is displayedin the
mainboard 88
Indicating Lamp
Replace the
mainboard
Work Normally
91
U-Match Series DC Inverter Service Manual
Correctly connect the
No
control wire of fan motor
on the mainboard
Operate the unit with
No
the new motor