- Joined
- Feb 28, 2017
- Messages
- 607
- Reaction score
- 378
installed an ATK about 1 month ago, all was working well. Last 6-7 days I get “Error ATO” every morning right around the same time 5-7 am. The ATO switch turns off. I slide it back to auto and all is fine until the next morning. Any ideas??

