I have 2 switches on the panel to operate the hot water heater - one electric and one gas. The gas works, but the electric quit (switch lights up, but no hot water). Checked fuses/breakers and no issues there. Hoping there is some easy fix??
Ours did the same thing on our 2014 330RLS.
It is likely the circuit board.
Check 110 voltage at the element, it is possible that the relay at the heat element isn't working, you should be able to hear it click when the wall switch is turned on for electric unit.If you don't hear the relay click then not getting 12 v from cicuit board to relay. Likely bad board. We ordered ours on line, much cheaper. Take part number from your old board.