ICP
Furnace

Model # NHOC125AK01 (741971 - 741980) Official ICP oil-fired furnace

Here are the diagrams and repair parts for Official ICP NHOC125AK01-741971-741980 oil-fired furnace, 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

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 94 parts  |

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

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

Nozzle 638238
#19

Functional replacement parts diagram

Nozzle

Part #638238

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

Blower Wheel 751887
#6A

Functional replacement parts diagram

Blower wheel

Part #751887

Replaced by #1175870

?
Manufacturer substitution
This part replaces 751887. Substitute parts can look different from the original.
In Stock
Primary Rela 612454
#14

Functional replacement parts diagram

Primary rela

Part #612454

Replaced by #R8184M1051

?
Manufacturer substitution
This part replaces 612454. Substitute parts can look different from the original.
In Stock
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

Coupling 97079
#7

Blower assembly diagram

Coupling

Part #97079

Replaced by #610466

?
Manufacturer substitution
This part replaces 97079. Substitute parts can look different from the original.
In Stock
Electrode 638240
#18A

Functional replacement parts diagram

Electrode

Part #638240

Replaced by #1170686

?
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

?
Manufacturer substitution
This part replaces 97073. Substitute parts can look different from the original.
In Stock
Boiler Cad Cell 97071
#20

Functional replacement parts diagram

Boiler cad cell

Part #97071

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

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

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.…

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.…