When you are posting a problem, let us know the year,make,model,floor plan of your unit.
As to your problem, I've had two Thors. The electrical outlets are about as cheep as can be found on the planet. The wires are just pressed into the outlet, not screwed down like a home outlet. With the power disconnected, remove the outlet cover, pull out the outlet, and visually check for a loose connection. If loose you can reseat it with a pair of needle nose pliers.
2017 Thor Freedom Elite 29fe
2015 Jeep Wrangler Toad
Making a smooth transition to senility for over 70 years