After it heats the water, the DSI light comes on. I am assuming I'm now locked out. I simply turn it off and when I need hot water, I turn it on. Sometimes it burns long and I have hot water. Sometimes it burns short and I have warm water. Regardless...
Could be the ECO or TSTAT are lose. I used to unplug and plug these to check for a loose connection. This could put the ECO or TSTAT out of place. Take off that gasket covering these components and make sure they are fitted tightly against the water ...
