Some part in our furnace seized up about 2 months outside the 1 year full coverage warranty through JA Sauer. The part would have been covered under the 10 year manufacturer warranty, but we would have had to pay (quite a bit) for the labor. The JA Sauer tech told me that he was going to request the labor be covered since we were only 2 months outside the 1 year warranty, and he got it approved—we only ended up having to pay their standard fee for the initial service call ($75 I think?) and nothing else, even though we were technically outside the warranty. All of this to say, JA Sauer is reputable and fair in my experience.