In what position should the levelling legs be left when the RV goes into long-term winter storage?
For long-term storage the safe choice is to leave the legs fully retracted. In the retracted position the moving surfaces of the mechanism are not exposed, and the risk of dirt and moisture build-up and corrosion is reduced. If you want the vehicle lightly supported, lower the legs only until they touch; never lift the wheels off the ground and leave the chocks fitted.
What to do before winter storage:
- Clean and dry the legs and the contact surfaces under them; mud and salt cause corrosion over time.
- Bring the legs to the fully retracted position with Retract Legs and check all four by eye.
- If possible, park the vehicle on hard, well-drained ground; on soft ground the vehicle settles within months.
- Leave the chocks fitted. The legs do not serve as a parking brake or as chocks.
- Protect the leisure battery: a lead-acid/AGM battery left idle for a long time sulphates. Either charge it periodically or connect a suitable maintenance charger.
- At the start of the season, test the legs in Manual mode with short movements and, if needed, verify the reference with Tare.
Leaving the vehicle under load on the legs for a long time is not preferred: the mechanism stays under constant static load and ground settlement upsets the load distribution. If your aim is something like resting the suspension, lifting the wheels off the ground for that purpose is not the right method - the vehicle can slide off the legs. Take your RV manufacturer's storage recommendations and the user manual supplied with the product as the reference.
The full topic: How to choose levelling leg capacity