Amana
Furnace

Model # OSCH-140 Official Amana oil furnace

Here are the diagrams and repair parts for Official Amana OSCH-140 oil furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 121 parts  |

Filter Rack Front B9236701
#4D

Replacement parts diagram

Filter rack front

Part #B9236701

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

Heat Exchanger And Combustion Chamber Assembly D9607901
#24B

Replacement parts diagram

Heat exchanger and combustion chamber assembly

Part #D9607901

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

Blower Cut Off, 5710000 M0876204
#35B

Replacement parts diagram

Blower cut off, 5710000

Part #M0876204

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

Top Panel Assembly B9230903
#31B

Replacement parts diagram

Top panel assembly

Part #B9230903

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

Blower Mounting Slide Angle, Right B9229601
#51B

Replacement parts diagram

Blower mounting slide angle, right

Part #B9229601

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

Insulation, 29 X 35 1/2 B9211716
Insulation, 29 x 35 1/2

Part #B9211716

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

Collar, Thrust, 3/4" 5151200 M0875807
#47A

Replacement parts diagram

Collar, thrust, 3/4" 5151200

Part #M0875807

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

Insulation, 23 3/4 X 36 B9211718
Insulation, 23 3/4 x 36

Part #B9211718

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

Choke, 2" Gray D9613818
#57A

Replacement parts diagram

Choke, 2" gray

Part #D9613818

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

Heat Exchanger And Combustion Chamber Assembly D9607801
#24A

Replacement parts diagram

Heat exchanger and combustion chamber assembly

Part #D9607801

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 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 walk-behind lawn mower.

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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