In January 2016 we had to replace the inverter in our coach. The original unit was a Xantrex Trace SW 2,500w. The new unit is a Xantrex Freedom SW 3,000w. When I was fooling around trying to learn the remote it locked up a few times. The first time it locked up I was unable to reset it. When I called Xantrex I was told to simply unplug the remote's wire from the inverter for a minute, then plug it back in. That fixed it.