The replacement was very easy and it works fine. Just a little anxious and $40. This would have been a royal PIA if we had been on the road, but we were home when it failed.
After putting the new one in I got a little medieval with the old one and took it apart. It had jammed on new plumbing type debris in the lines and broke a little piece of plastic in the cartridge. This is a result of poor QC in the original assembly.
So far on this three year old, but never been used camper, I have had two light fixtures fail, and improperly installed A/C which could have been serious but wasn't and trash in the plumbing jamming up the valves. I will get through this.
2010 27FB Classic
1989 190 Class B (Sold)
1977 29 Ambassador Land Yacht (Sold)