I am in the process of building a new layout, having dismantled my old layout two years ago for basement remodeling. In anticipation, and about that time, I purchased a new TIU and AIU. I do also have an early model TIU (before Rev L). OK, I am testing as I go. I hooked up the new TIU and it quickly recognized the engine on track when I did my engine add. It ran it with no problems. Forgot to mention, I upgraded the software before installing the TIU. So I added a few switches, tested them manually and they worked fine. I then added the AIU. I attempted to read in the AIU and it wasn’t recognized. I restarted the whole system and this time it read it. I hooked up the switch and using the remote, attempted to operate it. The remote said the switching occurred, but nothing happened. I listened to the AIU and I did not hear relay noise to indicate it had operated. I shut down the system and once again, the AIU was not recognized but a restart and it was found again. So I pulled out my old TIU, installed it, and that cured the problem as the engine and switches worked fine. I reinstalled the new TIU thinking that maybe the AIU needed a kick start, but the new TIU still did not work. Thoughts on what may be the cause of the TIU problem? Any help old be appreciated. I suppose it is out of warranty at this point since as I said, I purchased it some two plus years ago. And yes, my next level test will be to hook up my wifi module. Thank you!
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