Gree GMV-PD140W/NAB-K

108
DC Inverter Multi
VRF Service Manual
2.11 Trip
Yes
Yes
No
No
No
No
No No
Trip
Does switch
capacity meet the
requirements?
Replace mainboard Check
if AC contactors are
connected. Ensure that
there is not short circuit
between P-N
Wrong relay;
replace mainboard.
Replace mainboard
The system is abnormal
Check the compressor
wiring and winding for
short circuit.
Mount the electric switch
according to the capacity
requirements.
It is recorded and reflected
Leakage current is large.
Check the leakage spot
and deal with it.
Is leak switch trip open?
Check line chart
Does it trip
upon energization?
Yes
Yes
Yes
Yes
Is PFC
module on the mainboard
short-circuit?
Are relays
K8 ON the mainboard
connected ?
Is PFC
module on the mainboard
short-circuit?