What to check first
Photograph the stain and note rainfall, position and when it appeared. From a safe location, inspect accessible roof edges, vents and window trim for changed sealant or gaps.
When to get help
Keep the area dry and request a water-entry diagnostic. A spot seal alone cannot repair concealed damage.
Your RV’s make, model and component instructions control. Stop use and seek qualified help for propane odor, smoke, active electrical danger, unsafe braking or other immediate hazards. This guide does not diagnose your RV or establish part compatibility.
Next step
Check the exact component manual and model number before following a model-specific procedure.