wawalee

Hi folks, I'm new to this site and was looking for some assistance and decided to give y'all a try. 2009 Joyner R2 problem: water over heats troubleshooting done: replaced water pump, cools but found out fan wasn't coming on due to blown fuse. replaced fuse but keeps blowing. believe it is a temperature sending unit mounted near the water pump????? if it is where do i get that part? checked jmcmotors and silverbullet but can't find that part.....is it called something else? Thanks folks, Wawa