Gree Versati II, Service Manual, Page: 74 / 97

71
Air to Water Heat Pump
Service Manual- Versati II Series
MAINTENANCE
3.1.6 Compressor current protection(code:"P5") ; Compressor motor desynchronizing(code:"H7") ; IPM
protection(code:"H5"); Phase loss(code:"Ld")
E5 is displayed on
the wired controller
Is the compress
wire phase
sequence right?
Is the compress
wire terminals tightened?
adjust the compress
phase sequence
Tighten the
compressor
wire terminals
Replace the mainboard.
Does it work normally?
Replace
the compressor
P5
、
H7
、
H5 or Ld
is displayed in the
mainboard 88
Indicating Lamp
Yes
No
Work Normally
Yes
Yes
No
No
3.1.7 Charging circuit error(code:"PU")
E5 is displayed on
the wired controller
PU is displayed in
the mainboard 88
Indicating Lamp
Is the PFC wire
tightened or is the
sequence right?
Tighten the PFC wire
or adjust the sequence
Replace
the mainboard
Yes
No
Work Normally