Gree GMV-120WM/B-F

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
190
4) Variable-frequency compressor drive board IPM over-temperature fault (ODU fault P8)
5) Recharging circuit faulty of the variable-frequency compressor drive board (ODU fault PF)
No
Yes
PF
Check if the voltage of the
whole system's input power
cable reaches 200V.
Complete
Elevate the voltage of
the input power cable
to 380V.
The compressor drive board
is faulty and needs to be
replaced.
No
Yes
No
P8
Check if the fault occurs
when the system is
powered on.
Check if the IPM module is
screwed well and thermal gel is
applied on the surface.
Complete
Replace the compressor's
drive board.
Screw the IPM module
properly and apply thermal gel
on the surface.