I am in agreement with you all on the Tstats. I have an Atwwood. No hot water on electric. LP great. Breaker-good. switch-good......What would be next? I have GCH10A-3E 10 gal. Elec/lp combo. Don't know if I have the 3rd option besides those 2 options. Something about an Engine Heat source to heat water. Would TStats be next to check for current? Pull unit out and check connections on heating element? Check heating element itself? (screw in design) One thing is a voltage meter wall monitor doesn't twitch when I flip the interior on/off water heater switch on. There is an on/off switch on the right side of the back end of the unit. I'll check and hope you have some ideas. Unit is 14 years old. Change check valve 3 months go. All was fine. Trip to Texas and it worked a month and then the no hot on electic. I know what you are thinking......messed around in there and now...a problem. Hopefully loose connection. Bob