IOTA transfer switches suck!. There have been plenty of failures of these ATS systems, the 50 AMP one for sure. There have been some fires as a result of these faulty units and many failures like mentioned above. The company that makes these units was originally called something else other than IOTA but the name escapes me at the moment. They shut down and were reborn as IOTA. If you have one of these you need to do some research and I think you might want to change it to another brand. Just Google IOTA recalls or fires and see what you can find. While some RV manufactorers are doing recalls, I don't know if the IOTA folks even acknowledge their problem.
John- 2011 Fleetwood Southwind 32V