VRF Network Issues & Alarms - LG Multi V 5

AC is down on this LG Multi V 5 VRF heat recovery unit HRU. The call came in as a 150 code was displaying at the AC Smart control panel. During the troubleshooting we found some strange vrf networking issues with the control boards. These systems can serve as air conditioning units as well as heating units. What makes them the most special is they can heat and cool at the same time! VRF ac system are the future of air conditioning. Support the channel through,