Great news.
The folks at ARB are the greatest. I sent the power supply to them, got another back, did not work well. Nils sent me a new ARB cooler, latest model. Wahooooo.
Now I send the old one back to them, it is boxed up and ready to go to UPS. Nils was very helpful and most understanding about my problem. Now I have to make another holder for the new one as it is bigger than the old model and is configured differently as to location of handles and controls.
Now for a trip....somewhere.