If youíve located your actual water heater, youíll usually find the bypass valves are within inches of the lines into and out of the tank. Sometimes that means removing false panels or removing drawers. On my Class A, there was an access door I had to access from underneath the motorhome to reach up inside to get to the valves. My present motorhome has a false panel I remove located underneath the kitchen sink.
Ken and Terry
2018 Sunseeker 2430S
and if we ever need it, can be pushed by our 2017 GMC Terrain toad (4 wheels down)
Former Georgetown 330TS owner for 10 years with more mods than I can count.