I have a 2005 Monaco Dynasty Bishop IV.
The water temperature always runs between 189 - 213. 225 when really hot (warning light came on). This average temperature seems too high to me.
When I purchased the Motorhome, the salesman said it ran hot, so I'm not sure what temperature it should be. Did hot temperatures on your water gauge cause you to look at the cooling fan? What temperature did your 2005 Monaco run at?