When the builder originally programmed our pool, we set the spa returns to run during the daily pool schedule so we could circulate water in the spa and enjoy the spill over during the day time. A few weeks ago the spa returns stopped working during this normal cycle, so the spa water hasn't been circulating unless we run the spa mode. We haven't touched the programming, and the pool, spa, waterfall, etc. features are working perfectly. I need help troubleshooting, but haven' the slightest idea where to start. Below is a picture of our plumbing, and please note we have 4 actuators: 1) split between spa and pool drains, 2) split between spa and pool returns, 3) heat return, and 4) pool return.