medium severity
Onboard RV generators are often rated for thousands of hours; under ~1,000 is low, and well-maintained units routinely run far longer. Lack of use is actually harder on generators than moderate running, so ask for service history and test it under load.
What it means
Built-in generators (common on motorhomes and some toy haulers) power AC and appliances off-grid. Like any engine they need oil changes, exercise, and occasional service.
Symptoms & signs to look for
- Very high hours with no service records
- Won't start or run under load
- Sat unused for years (carb/fuel issues)
What to inspect
- Check the hour meter and ask for service records
- Start it and run it under load (AC on)
- Listen for rough running or surging
Repair cost & price impact
| Item | Typical range |
|---|---|
| Repair cost | $150 service to $1,500+ for carb/major repair |
| Effect on what you should pay | A non-running or neglected generator is a negotiating point. |
Most affected: Motorhomes, toy haulers, some fifth wheels
Questions to ask the seller
- How many hours, and when was it last serviced?
- Has it been run regularly or sat unused?
When to walk away
- Rarely alone, price in repair if it won't run
RVverdict provides educational buyer guidance, not a professional RV inspection, appraisal, legal advice, insurance quote, financing offer, or guarantee. Always verify title, service records, tire age, and roof/seal condition independently. Consider a professional inspection before buying.