Gree GMV-Y36WL/A-T, Service Manual

Page: 117 / 147

GREE hotovoltaic Multi VRF for North America
115
(15)
Overcurrent protection for inverter compressor, IPM module protection, phase-lacking of
inverter compressor
LED3 dual-8 nixie tube
displays P5
、
P6 or PE
Whether the
sequence of wire
for compressor is
correct?
yes
Replace main
board. Work
normally?
no
Replace
compressor
Work normally
yes
Adjust the sequence of
wire for compressor
Whether the
wiring terminal of
compressor is
loose?
Connect the wires of
compressor tightly
yes
no
no
Wired controller
displays P1
(16)
High pressure protection for driven DC bus bar of compressor, low pressure protection for
driven DC bus bar of compressor
Wired controller
displays P2
LED3 nixie tube
displays PH or PL
Whether the power
voltage is
185V~264V
？
yes
Replace main
board. Work
normally?
no
Replace compressor Work normally
yes
Close Upon power off
and ask authorized
personnel
no