We share the characteristic of repairing or rebuilding as opposed to replacing, but in the case of something like a roof air, Cruise Air, or in my case a refrigerator I fix stuff up to a point and then because it is a motorhome and stuff fails when I am away from home I only do repairs that are not a reflection of the future reliability.

On my recently replaced refrigerator for example I replaced the evaporator fan, condensing fan and evaporator coil (three different repairs) so when it started acting up again I decided it was time and pulled it out and replaced it with new.

I have repaired Cruise Airs, but I also replaced all on my first coach when they hit 15 years or so of age. I am getting away from struggling with repairs when we are traveling.

On the other hand, since the coach has not lost any of its integrity I do all repairs necessary as well as a whole lot of preventive maintenance in advance of the need for a repair, such as air bag replacement.