Furnace

Model # NHOC100AJ01 (741971 - 741980) Official ICP oil-fired furnace

Here are the diagrams and repair parts for Official ICP NHOC100AJ01 (741971 - 741980) oil-fired furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for
NHOC100AJ01 (741971 - 741980) Oil-Fired Furnace
Nozzle 638238
#19

Functional replacement parts diagram

Nozzle

Part #638238

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

F&l Control 638011
#23

Functional replacement parts diagram

F&l control

Part #638011

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

Fan Relay 92840
#10

Functional replacement parts diagram

Fan relay

Part #92840

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

Air Filter 64502
#4

Functional replacement parts diagram

Air filter

Part #64502

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

Primary Rela 612454
#14

Functional replacement parts diagram

Primary rela

Part #612454

Replaced by #R8184M1051

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Manufacturer substitution
This part replaces 612454. Substitute parts can look different from the original.
In Stock
Coupling 97079
#7

Blower assembly diagram

Coupling

Part #97079

Replaced by #610466

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Manufacturer substitution
This part replaces 97079. Substitute parts can look different from the original.
In Stock
Blower Wheel 751887
#6A

Functional replacement parts diagram

Blower wheel

Part #751887

Replaced by #1175870

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Manufacturer substitution
This part replaces 751887. Substitute parts can look different from the original.
In Stock
Electrode 638240
#18A

Functional replacement parts diagram

Electrode

Part #638240

Replaced by #1170686

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Manufacturer substitution
This part replaces 638240. Substitute parts can look different from the original.
In Stock
Wheel Burner 97073
#15

Functional replacement parts diagram

Wheel burner

Part #97073

Replaced by #1150448

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Manufacturer substitution
This part replaces 97073. Substitute parts can look different from the original.
In Stock
Front Panel 638208
#19B

Non-functional replacement parts diagram

Front panel

Part #638208

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

Symptoms for gas cooktops

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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