Two weeks ago, while in the Escapees park in Alabama, turned on the Aquahot diesel. Green led came on, motor started and ran, all good. A few minutes later Molly let me know she wasn't getting hot water. In our house, that's an emergency.<br/><br/>Checked outside, motor running but exhaust was cool. Checked the 120v and 12v breakers. Both good. Pulled the cover from the Aquahot,...