Check all electrical connections for loosness and corrosion including the wall switch. If everything is clean ant tight, probably the motor has gone south.
Harold and Linda
2009 CT Coachworks siena 35V
W-22 Workhorse 8.1L
Explorer toad
4 whopping cylinders on Toyota RV's. Talk about great getting good MPG. Also I have a very light foot on the pedal. I followed some MPG advice on Livingpress.com and I now get 22 MPG! Not bad for a home on wheels.