There's a checklist that was developed and has been circulated widely on this forum. Here ya go:
Basically, start with the visual items –
1. Exterior
• Look for water stains and discoloration on inside walls and around ceiling anywhere vents, skylights, windows, etc. exist.
• Push and prod with your hand on the inside walls for soft spots (which could indicate a water leak and a damaged or rotten interior wall).
• Check for bubbles in the wallpaper (a sign of delimitation or water intrusion)
2. Interior cleanliness of the unit-
• Look for water stains and discoloration on inside walls and around ceiling anywhere vents, skylights, windows, etc. exist.
• Push and prod with your hand on the inside walls for soft spots (which could indicate a water leak and a damaged or rotten interior wall).
• Check for bubbles in the wallpaper (a sign of delimitation or water intrusion)
3. Test appliance functions –
• lights
• fans
• refrigerator
• air conditioner
• heater
• water pump
• range hood
• stovetop
• oven (if equipped)
• microwave (if equipped)
• stereo (if equipped)
4. Lift System-
• Does the unit raise and lower properly
• Check the lift system for hydraulic leaks (puddle under the trailer)
• Check the lift cables to see if they are in good shape and not frayed
• Check the seal between the upper and lower body halves for tears or damage
5. fill the tanks to the top and check for leaks
6. Battery
7. Solar Panel (if equipped)
There's also an awesome set of videos on YouTube that give instructions on operating the various components. Here's one in the series, and it will lead you to others (by Sting32).
Many of the systems in a Hi Lo are the same in other RVs, but there are some differences (like raising/lowering) that you should review.
Be careful in checking for past water damage.....it seems to be a problem that shows up with some frequency. Of course, this is true for most RVs.
Good luck in your search!
