I have a new AIU I’m setting up to work with my TIU and WiFi modules. I found out from MTH that the 5v from the WiFi module isn’t enough to power the AIU relays. So, I now have a 15v Wall wart from a starter set plugged into the TIU in addition to the WiFi.
Now, when I program the AIU and select a switch or accessory, I get a “command Failure” message..
Any idea what’s causing this?