Couple of weeks ago the compressor in my Trane XR12 HP died--had the service company come out and the diagnosis was a shorted compressor. I had the system installed in Oct. 2002 and so the entire system (XR12 HP, Coil, XL80 Furnace, etc.) was still under the Trane 10 year parts + labor extended warranty.
Back in Oct. 2002 I paid X $'s for the extended warranty, and up to the point where the compressor failied, Trane had paid out 4X $'s for warranty repairs. The service company said that the compressor repair was going to cost 10X $'s, but was covered under the extended warranty (parts + labor)--so far, so good. However, a day later, the service company called and said they had spoken with the local Trane distributor and that the compressor was going to have to come from the factory in Tenn. and that it would be 7-10 business days or longer before it would arrive at the service company. However, the local Trane rep. based at the local Trane distributor told the service company that for 1.5X $'s, that the order/shipping could be expedited, but the expediting charge would not be covered under the extended warranty--I would have to pay that to get the compressor in a "timely" (but "timely" being undefined beyond being quicker than 7-10 business days or longer).
To make a long story short, I was livid. I called the Trane extended warranty dept. and Trane customer relations and raised holy hell, but to no avail. Finally, I told the service company to get rid of the Trane junk and install a new Carrier Inifinity System.
So all is good at the moment with the new Carrier system...However, I learned an important lesson about manufactuer's extended warranties--they are worthless if the manufactuer can't/won't supply parts in a timely manner. Also, no more Trane junk for me.... From what I've read in these forums, it appears that Trane has a problem with being able to maintain an inventory of parts as well as basic quality control of the product coming out of their factories. That's a shame--I used to believe they made a good product.