​A quick not to say thanks for all your help. After removing the solenoid and opening it up, I found a broken lead wire inside. Fortunately, it was broken (fatique) right at the connector. A quick splice, redirection of the wire, and we were back in business. A new solenoid will be installed when I get back to Tulsa. I must say that by the way the wiring is designed, I'm suprised more of them have not failed.
In the mean time, it's COLD in Eastern Colorado...​ Currently -4 at 2:00 in the afternoon. Makes me glad the Webasto works.
Later,​
Jackson & Jessica​