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Furnace

Model # HO-1 Official ICP oil-fired horizontal forced air furnace

Here are the diagrams and repair parts for Official ICP HO-1 oil-fired horizontal forced air furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 93 parts |

Nozzle 101A176

Oil burner assembly diagram

Nozzle

Part #101A176

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

Nozzle M101A97

Oil burner assembly diagram

Nozzle

Part #M101A97

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

Thermostat 254A247

#NI

All parts diagram

Thermostat

Part #254A247

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

Firing Head A10B837

Oil burner assembly diagram

Firing head

Part #A10B837

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

Extension A108A192

Oil burner assembly diagram

Extension

Part #A108A192

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

Electrode D108B199

#NI

All parts diagram

Electrode

Part #D108B199

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

Extension A108A191

Oil burner assembly diagram

Extension

Part #A108A191

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

Shaft A139-73-4

Blower assembly diagram

Shaft

Part #A139-73-4

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

Gasket - 6" D.d. X 4 1/2" I.d. 6408109-38

#NI

All parts diagram

Gasket - 6" d.d. x 4 1/2" i.d.

Part #6408109-38

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

Filter Support Angle 6408109-18

#NI

All parts diagram

Filter support angle

Part #6408109-18

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

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

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

Why isn't my cooktop's gas burner heating properly?

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

Why do my cooktop's spark igniters keep clicking?

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

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

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