I've got a 2008 sunset Trail trailer that has a 10 gallon Atwood water heater in .It is a dual control (electric/gas model) It worked fine last year when we winterized it,first camping trip this year the electric side did not work,gas did. Any ideas as to what to look for ,for fixing it? Breakers and fuses all good,do you think the heating element has failed? The light on the control,where you can select electric or gas,does not come on when you turn it on to electric. Ideas --Thanks guys :-\