We charge your card when the item has shipped. Use store finder to find a nearby Lennox Store location. Warranties: All parts have a one year warranty for defects unless stated otherwise. The series of letters and digits in the Lennox model number reflects particular information relating to the product. This varies on a product-by-product basis. Lennox Coil Problems often present early in the 1215 year lifespan of an AC unit. This is extremely important today with the computerized, sophisticated conditioned air systems, which often costs hundreds of dollars to repair. //-->\n Find everything from switches and buttons to controls, pumps and motors for effortless solutions.