Suburban Water Heater electric heating element question

Thanks for the replies. After more research I'm fairly certain that the electric element needs to be replaced. I suspect that at some point I had the outside switch on, the RV hooked to shore power, and the tank empty. I've watched instructive videos and it's not much more difficult to change out than a anode rod would be. Total parts including a special tool runs less than $30.00.

The heating element is a Camco part number 02143. The special tool is the Camco Water Heater Element Wrench part number 09883.