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York
Heating & Cooling Combined Unit

Model # D3CE120E05425ME Official York package unit

Here are the diagrams and repair parts for Official York D3CE120E05425ME package unit, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 7 of 7 parts  |
Controller, Johnson 025-29049-700

#NI

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Controller, johnson

Part #025-29049-700

The manufacturer no longer makes this part, and there's no substitute part

Sensor 031-00878-001

#NI

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Sensor

Part #031-00878-001

The manufacturer no longer makes this part, and there's no substitute part

Electric Heat (see Notes) 2HE04515425A

#NI

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Electric heat (see notes)

Part #2HE04515425A

The manufacturer no longer makes this part, and there's no substitute part

Cartridge 025-30726-700

#NI

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Cartridge

Part #025-30726-700

The manufacturer no longer makes this part, and there's no substitute part

Fuse 025-18719-000

#NI

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Fuse

Part #025-18719-000

The manufacturer no longer makes this part, and there's no substitute part

Accumulator N/P

#NI

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Accumulator

Part #N/P

The manufacturer no longer makes this part, and there's no substitute part

Switch, Molded Case 024-21214-701

#NI

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Switch, molded case

Part #024-21214-701

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Most common repair guides to help fix your heating & cooling combined units

These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.

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How to unclog the air conditioner drain line

How to unclog the air conditioner drain line

The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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Repair difficulty
Time required
 15 minutes or less
How to replace the furnace flame sensor

How to replace the furnace flame sensor

The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only sta…

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Repair difficulty
Time required
 15 minutes or less
How to replace a heating and air conditioning system thermostat

How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your heating & cooling combined units

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

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