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Here are the diagrams and repair parts for York D3CE090A25MK heating & cooling unit, as well as links to manuals and error code tables, if available.
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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.
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Choose a symptom to see related heating and air conditioning system repairs.
These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.
The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only stay on for a few seconds.
The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start dripping below the inside air conditioner unit. Follow the steps in this guide to unclog the drain pipe.
The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.
Use the advice and tips in these articles and videos to get the most out of your HVAC system.
Learn the reasons why you should consider replacing a gas furnace with an electric heat pump.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.
Learn about furnace repairs and how much they cost.