This would be a part of the facts that are important. If it was sold with a one year, that might limit the other warranty. If they brought it in for repair and the retailer then told it was a one year warranty, that would be different. As to the OPs claim everything must go through the retailer, then he would need written evidence from the retailer regarding the length of the warranty. (Written as a three year warranty cannot be completed in one year and the statute of frauds would be implicated.)She was sold the item with a one-year warranty...