Can’t find your part? Contact us:

+1-309-603-4777

Heating & Cooling Combined Unit

Model # D3CG090N16525MB Official York heating & cooling unit

Here are the diagrams and repair parts for Official York D3CG090N16525MB heating & cooling unit, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 189 parts |

Capacitor 024-20045-700

#21

All parts diagram

Capacitor

Part #024-20045-700

Replaced by #12907

?

This item is not returnable

$4.87 |

17% OFF Phone Price : $5.87

In Stock

Qty

Elec Cntrllr 025-20963-000

#17

All parts diagram

Elec cntrllr

Part #025-20963-000

$19.63

In Stock

Qty

Igniter 025-29010-000

#51A

All parts diagram

Igniter

Part #025-29010-000

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

Rail Base 063-90011-000

#119

All parts diagram

Rail base

Part #063-90011-000

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

Pulley, Fixed (blower) 028-09985-700

#54B

All parts diagram

Pulley, fixed (blower)

Part #028-09985-700

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

Bushing 025-26385-000

#134

All parts diagram

Bushing

Part #025-26385-000

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

Igniter 025-26361-000

#51

All parts diagram

Igniter

Part #025-26361-000

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

Spacer Mtr 063-92626-000

#79

All parts diagram

Spacer mtr

Part #063-92626-000

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

Heat Exchange 363-90016-002

#41

All parts diagram

Heat exchange

Part #363-90016-002

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

Shaft Blwr 001-07115-000

#56A

All parts diagram

Shaft blwr

Part #001-07115-000

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.

Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

Why isn’t my air conditioner cooling well?

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

Why isn’t my air conditioner cooling?

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

Why won't my air conditioner turn on?

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

Why won't my furnace turn on?

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

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

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

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.

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…

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…

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.…

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.

Maintaining your air conditioner

Maintaining your air conditioner

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

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

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.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Stay Connected