Gree GMV-VQ680WM/C-X Service Manual page 272

Gree
Test the compressor drive board (IPM module).
1: Disconnect the power and wait five minutes, and unplug the compressor cable.
2: As shown in the figure, switch the multimeter to the diode gear. Point the black probe to the P
bonding pad and the red probe to the L1 wiring terminal. In the normal condition, the multimeter will not
beep. If it does, the drive board is damaged and needs to be replaced.
3: Point the black probe to the P bonding pad and the red probe to the L2 wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
4: Point the black probe to the P bonding pad and the red probe to the L3 wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
5: Point the black probe to the P bonding pad and the red probe to the L1 wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
6: Point the black probe to the P bonding pad and the red probe to V wiring terminal. In the normal
condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be replaced.
7: Point the black probe to the P bonding pad and the red probe to the W wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
8: Point the black probe to the N bonding pad and the red probe to the L1 wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
9: Point the black probe to the N bonding pad and the red probe to the L2 wiring terminal. In the
normal condition, the multimeter will not beep. If it does, the drive board is damaged and needs to be
replaced.
10: Point the black probe to the N bonding pad and the red probe to the L3 wiring terminal. In the
GMV6 HR DC Inverter VRF Units Service Manual
270