I cannot power up my Dometic refrigerator,  model RM 2193 in 13' Scamp, 2018 model.  Gas won't light(gas hot water heater works, so tanks not empty), and electric won't work.  I checked all fuses with a meter and electric power sources.  Battery power doesn't work either.  It's only 2 years old, is it at end of life cycle?????