My dad and I are trying to corrrect some wiring issues with a new xpress boat. It looks like the timer is wired on both auto switches for the recirc and aerator. The manual works on both switches but not the auto. How should this be wired on two switches.

Silly question but have you left the switch turned on long enough to cycle? I ask because my timer is wired to both and it works fine.
Another issue is you may have a bad timer.

We thought it would cycle on as soon as we hit auto then shut off until the next cycle. We'll have to test next time we're on the water. Beginning to think timer is bad so we will test tonight. Any chance you can get a picture of how yours is wired up?