If you saw my post yesterday, you know our new water heater quit working.
The plumber said the strong north winds had blown the pilot light out. I didn't believe him - it never happened with our old water heater, not even during hurricanes - but he was confident, and he did get it back on.
The problem was that it only burned for about an hour, enough to get the water warm but not really hot, before it went out again.
We called him back, and after he called the manufacturer they are overnighting a new heating unit that should be here by noon. They don't just send thermocouples - what I thought was the problem all along - these new heaters use a sealed system replaced as a unit.