Onan RV generator winterize and storage prep

Use this Cummins winterizing guide to document storage history, model data, and no-start facts before generator support.

Owner-safe checklist

• Record generator model, spec, serial or GSN, storage duration, last exercise date, fuel type, battery state, and any stabilizer or winterizing history.
• Stop the generator and keep it off if you smell fuel or exhaust, see leaks, or it runs erratically after storage.
• Use Cummins Coach Care, the operator manual, or qualified generator service for fuel, exhaust, electrical, no-start, or parts decisions.

Official sources

• Cummins winterize your RV generator tips