The water heater is probably set to by-pass... go inside the RV find where the water heater is remove the panel or open the door there .. you should see the hoses going to and from the water heater. there are probably 3 valves on them forming a H pattern close the center one and open the other 2 this will allow water to get into and out of the water heater... just remember in the fall to reverse the procedure for winterizing..
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12