Third time out, the water heater dies. Does not work on either gas or electric. Both switches light up at the panel, but no hot water. I have checked propane, checked behind the switches, checked the fuses (both 12v and breakers), checked the fuse on the WH circuit board.

I decided it must be the circuit board since it would not work for either gas or electric. I ordered a new board (can not face going to the dealer....) just installed it. No dice.

Any ideas? Thanks in advance.