Can’t find your part? Contact us:

+1-309-603-4777

Heating & Cooling Combined Unit

Model # D1HG048N09925 Official York heating & cooling unit

Here are the diagrams and repair parts for Official York D1HG048N09925 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 30 parts |

Lug Ground 025-21798-000

#29

All parts diagram

Lug ground

Part #025-21798-000

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

Plug, Electrical Harness 025-30804-000

#8

All parts diagram

Plug, electrical harness

Part #025-30804-000

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

Terminal Grounding 025-29006-000

#32

All parts diagram

Terminal grounding

Part #025-29006-000

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

Connector , Cap (3-circuit) Pwr. Exhaust 025-21193-000

#14

All parts diagram

Connector , cap (3-circuit) pwr. exhaust

Part #025-21193-000

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

Label, Wiring Legend (reference) 035-12973-000

#28

All parts diagram

Label, wiring legend (reference)

Part #035-12973-000

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

Isolator, Compr Bottom (8-req'd), (note: Style "b" Models Are The Same As Style "a" Except For The Following Parts) 029-20421-000

#5

All parts diagram

Isolator, compr bottom (8-req'd), (note: style "b" models are the same as style "a" except for the following parts)

Part #029-20421-000

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

Motor, 1-1/2 Hp 208-120/460-3-60 024-19623-018

#6

All parts diagram

Motor, 1-1/2 hp 208-120/460-3-60

Part #024-19623-018

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

Relay Control (unit Style E,f) 024-26089-000

#30A

All parts diagram

Relay control (unit style e,f)

Part #024-26089-000

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

Transformer 025-25973-000

#33

All parts diagram

Transformer

Part #025-25973-000

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

Relay 024-21678-000

#31

All parts diagram

Relay

Part #024-21678-000

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 furnace burners won’t stay lit?

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

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…

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 prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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