York air conditioner parts can be purchased through York dealers that can be found on the company website, as well as the Air Dynamics Heating and Cooling Warehouse, SupplyHouse.com, Johnson Controls and Expert Appliance. A troubleshooting guide is available on the York website to help diagnose problems.
Mechanical heating and cooling equipment can be complex, so the York website has maintenance tips to help avoid breakdowns. Cleaning or changing air filters according to manufacturer's specifications is recommended, as well as cleaning grills to prevent dust and debris accumulating that can clog the filters. Inspection of the ducts around the air handler unit for leaks that can let unfiltered air into the system is also advised.