One of my fans will not work with either remote and both remotes work the same fan. They are both installed in a vaulted ceiling living room. Any tips on how I can get the right remote to work the right fan?

You will need to check the DIP switches on the fan and remotes. Under the canopies of the fan and inside the remote are small switches that code the fan. It appears 2 of the remotes are coded the same. Drop the fan canopies, look at the DIP settings on the receiver and transmitter and make sure they match. Do not make them the same or you will always have the conflict. Set, for example, up, down, up, down and then on the other fan down, up etc.