Hi, I have a '95 Hotsprings Jetsetter with a slow leak that only seems to happen when the heater is running. A friend told me something with the heater is probably loose, but the only way to gain access to the area in question is to remove some side panels. The panels on this model (they are wood) do not have screws or staples that I can remove-they appear to be tongue in groove. Any ideas on how to remove them without damaging them?