About a week ago I posted "Aquahot control issue, Rudy rescued me..."<br/><br/>with the conclusion that the the culprit was the diesel switch in the kitchen.<br/>I obtained a switch, replaced it and the aquahot furnace came on. <br/><br/>I failed to test the switch I took out, I just assumed it was faulty.<br/><br/>Success, so I posted and thought.<br/><br/>Several days later the aquahot system furnace was dead...