Ok - now we're getting somewhere. Thank you so much! I connected the spa light to the blower terminal and it works perfectly. The pool light, which is on a dimmer, however, did not at first. I went to the indoor controller and programmed the blower auxillary as a dimable light and named it the Pool Light. Success, it worked perfectly so at least I have the light back and it's dimmer is ok. I now believe my unit is an RS6 as the 7 and 8 Auxs do not light when depressed. Aux 3 was the pool light and Aux 4 was the spa light. With both of these, the indicators light but there is no voltage. Aux 5 is a little different. It is connected to a blank relay. The indicator light turns on and off but it is always hot at 32v. So, unless there is something I don't know about 5 I'm coming to believe that Aux 3,4,5 are defective. Any suggestions? I see there is a Relay Driver Chip 3814 for $15 what do you think about replacing it?
Now, fully confident, I went back and connected the spa light to the solar relay. When I activate it from the panel or house it too works fine. Now that just leaves the blower. Now that you have trained me I see the 24v Electric Terminal next to the solar one (my heat is gas) and connecting to it runs the blower when I hit the heater button on the panel. However, there is no button for this at the house controller. Any thoughts on that? I do have spa and pool heat buttons at the house but they run the gas heater.
Many many thanks!
Jim