A pre-trip check is component service. It is not a certified pre-purchase inspection or a roadworthiness certificate, and the scope should name which systems are examined and what each check includes.
Air conditioning, furnace, water heater, plumbing, and electrical are separate systems with their own checks. The RV year, type, and model, plus each appliance model, show what applies.
Findings are observations until someone diagnoses them. A furnace that short-cycles is a starting point for diagnosis, not a conclusion about the cause.
