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Amana
Furnace

Model # OC100-BH Official Amana oil-fired counterflow furnace

Here are the diagrams and repair parts for Official Amana OC100-BH oil-fired counterflow 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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ALL PARTS
Showing 10 of 153 parts  |
Door - Access - Center 306-5460
#9C

Replacement parts diagram

Door - access - center

Part #306-5460

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

Motor Pulley 20-1520
#49B

Replacement parts diagram

Motor pulley

Part #20-1520

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

Furnace Blower Shaft 20-5021
#42

Replacement parts diagram

Furnace blower shaft

Part #20-5021

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

Oil Burner Relay (m-h R8184b1188) 21-0833
#31

Replacement parts diagram

Oil burner relay (m-h r8184b1188)

Part #21-0833

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

Door - Access - Center 304-5460
#9A

Replacement parts diagram

Door - access - center

Part #304-5460

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

Control - Primary (m-h) Ra-816a1173 Early Model 21-0486
#27

Replacement parts diagram

Control - primary (m-h) ra-816a1173 early model

Part #21-0486

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

Bracket #12848a 102-54
#26K

Replacement parts diagram

Bracket #12848a

Part #102-54

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

Blower Housing Assembly W/brkts. 980-1249
#39A

Replacement parts diagram

Blower housing assembly w/brkts.

Part #980-1249

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

Blower Pulley 7 X 3/4 20-1560
#50A

Replacement parts diagram

Blower pulley 7 x 3/4

Part #20-1560

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

Bracket #12848a 102-51
#26D

Replacement parts diagram

Bracket #12848a

Part #102-51

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Repair guides for treadmills

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

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

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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 treadmill.

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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.…

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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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