just replaced one of the two elements this evening. Results= Now no hot water I drained it and checked the other one. Looks to be ok but a contunity test says otherwise. Still I can't see why changing one element (or having a broken one) would keep the other from working. There are two thermostats (tied together somehow) anyone have any ideas? It's not a tripped breaker its not that old of heater. had it about 3-4 years.