This post is to share our experience with York products. We hope others find it helpful. We replaced 20-year-old York products with their top-of-the-line Affinity modulating gas furnace and 2-stage AC. Shortly after the install, the furnace whined, made siren sounds, and vibrated the entire home. This went on for over 500 days. The repairman came over 10 times in 4 months this year alone. Changed out the venter motor 6 times. The 6th one started making strange noises. He said he wasn’t going to fix it and just left it that way and went home. A non-HVAC friend helped us diagnose the vibration problem over the phone, just by placing our hand on the top and sides of the cabinet and report if we felt vibrations. We had to tell the repairman what to check. The blower wheel was bent from day one. The ECM motor was also bad. The AC dimmed the lights when it came on, sucked the power out of the house. Repairman checked it over and said that was normal. The new 2-stage 15 SEER AC was an energy hog ... we used more kWh to cool the home in over 20 years (and it was a cooler summer than the prior year with the old equipment) and saved no kWh to heat, even with a variable speed ECM motor. Customer service is even worse. Said we were trying to compare apples with oranges for energy savings. Common sense would tell you that you'd save money over your old equipment ... even their brochures say that. York uses false and misleading advertising ... puffery at its finest. They don't train their service people very well to properly diagnose problems. York knowingly packages defective parts so the repairmen think they’re fixing stuff but they’re just putting in another bad part. Be aware that York customer service requires your Social Security number or Driver's License to get your money back plus adds a gag order. We took a different route to get our money back. Their products made our home unbearable. Tried to sleep with earplugs and with the bath fan running all night. The bed starting vibrating at 2-3 AM because it took the furnace 6 hours to reach 68 degrees by 8 AM. York told us not to buy their products again and we didn't. Happy to have this garbage out of the house. York has really gone downhill. Our old York system was reliable and quiet and more energy efficient than their new products. They could care less if their products cause you and your family any discomfort and lack of a good night’s sleep for over a year. They don't care about customer loyalty so save yourself a lot of frustration and buy something else. This was the worst purchase we ever made.