We own a brand new house and our central air is covered by a two year warranty. It seems, however, that we have a refrigerant leak and we are being told by the HVAC contractor that we are responsible for paying to have it repaired ourseleves because the leak may have been caused by a drywall nail puncturing the line in our basement ceiling. (The drywall was not installed by the builder - we had our basement finished by another contractor.)
My first question is, how likely is it that a drywall nail is causing the leak? Has anyone heard of this before?
My second questioin is, how likely is it that the line was leaking on its own and it has nothing to do with a drywall nail?
My last question is, I have a picture of the ceiling from before the drywall was installed. What should I be looking for in terms of a "line". There is a silver hose that runs along the joist in one picture, but it looks as if it is placed to high for a drywall nail to be able to reach it. I am wondering if this is the line?