I had the classic apex set up for 10 years and I won the new apex el last week at a local swap. I got it all hooked up which was very simple. My issue is my screen on fusion doesn’t seem to update like my classic did. Now not being a tech wiz maybe I did something wrong. Just nervous my co2 won’t shut down if it drops to low or my heaters won’t turn on if it goes below 77 since it’s not updating parameters.