Do you know where your water heater actually? You’re not giving us much to work with.
In my Voltage 3200… the heater is located in a cavity underneath my refrigerator, covered by a wooden grille. (circled in the photo) It is accessed via removing 4 screws, and then pulling the entire grille out from the wooden frame.
2013 VOLTAGE 3200 (EPIC I & II)
2014 Ford F-450 PLATINUM
2018 BMW R1200GS RALLYE