Aha! Your first picture shows something I have been concerned about - the water heater control panel in the new units. In mine, the switches were labeled strangely (see first pic), and didn't seem to function as the labels indicated. As I played around, trying to figure out what the switches actually do, I burned out the water heater element. Annoying.
I don't know if TM changed the labels as they made more panels - they told me they weren't going to continue to use it at all. That's too bad - I liked it in general, and suggested new wording to the factory. I made up a panel with new labeling (see second pic) that seems better to me. It is not a work of art, and I'll do better next time. But it will look better when the switches are snapped in and their skirts cover up the mess around the openings.
If yours is like mine, be aware that the ON-OFF switch on the water heater body itself, mentioned in dozens of posts on this forum, may no longer be there.
Bill
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