Thanks for the tip. Another notorious failure point is the electrical on/off switch. I had one where the connector terminals must have oxidized leading to poor connections and made the switch overheat melting the plastic switch a bit. Froze the switch.

My switch froze, too.
I got the switch loose, but it wouldn't come out.
Someone showed me how to pull switch out a little.
Tilt top of switch towards me and lift up and pull all the way out.
I extend the wires to the switch and remounted the switch inside the rv..
Much better.

I did the same mod Jay. Much easier to access. I would suggest anyone removing the switch to kill the power first.