Gree GMV-PD160W/NAB-M

105
DC Inverter Multi
VRF Service Manual
2.8 No energization to the unit and mainboard
Yes
Yes
Yes
Yes
No
No
No
No
Deenergizing of unit
and mainboard
Is power
supply of wiring board
L and N 220V?
Is air switch turned ON˛
Is input of filter board energizing?
Is output of filter board energizing?
Replace mainboard
Is power supply of wiring
board normal?
TurnairswitchtoON
Air switch is damaged or loose
Replace filter board