Have you checked your battery? Even though it is only two years old it may be shot. Our dealer put a three year old battery in ours when we picked it up and it lasted 4 months. Even if your were you hooked up to shore power or plugged in to the tow vehicle with it running to charge the battery, if the battery is no good it will drop fast. Check the voltage off of external power while moving the slide and see if it drops significantly.
2016 Forester 3011DS
2015 Toyota Corrola S toad
PREVIOUS: 2015 Flagstaff 832IKBS
99 Terry 31G