Sounds like loose connection somewhere. I’d check outside first though. I found in my fridge panel someone had used the wrong kind of caulking to try and seal the hole in the wall (which should have had a gasket anyway) so that leaks don’t come back in the trailer and it all melted. I fixed it with a rubber gasket covered in heat resistant caulking. Check the HWT as well from outside to see if there’s a leak.
Does it stay smelly or just when you start it up? I have a gas stove at home (and the propane one in the trailer) and the gas has to ‘flow’ before it is lit. So there’s always a smell at first when u turn it on. If you are smelling it before you’ve touched anything on the stove that’s not good. You can reach under the stove from the sink cupboard in mine. I’d do the soap test on all the joints to see if any are leaking. Just like you do with a bbq.
2006 FF Cruiser-X 18'9" FBR
Honda Pilot Touring Edition
"You miss 100% of the shots you donít take"