I bought a class B that hadn't been used for a couple of years in October. The generator is in the middle underneath and doesn't start. I took it to an RV dealer to do some other camper stuff and asked him to see what he could do with the generator - nothing because he doesn't have a lift. So, I took it to a Cummins place and they lifted it but couldn't drop the generator...they would have to cut it out due to rust. So, I chose not to have it repaired (estimate was $1,500 - $2,000 to repair, $4,500 to replace).