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Amana
Furnace

Model # OC125-BH Official Amana oil-fired counterflow furnace

Here are the diagrams and repair parts for Official Amana OC125-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  |
Motor Pulley 20-1509
Motor pulley

Part #20-1509

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

Heat Exchanger Assembly 900-4001
#23A

Replacement parts diagram

Heat exchanger assembly

Part #900-4001

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

Blower Pulley 5 X 3/4 20-1532
#50C

Replacement parts diagram

Blower pulley 5 x 3/4

Part #20-1532

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

Blower Assembly (complete W/ Motor) 10-8 980-0179

#NI

All parts diagram

Blower assembly (complete w/ motor) 10-8

Part #980-0179

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

Blower Assembly (less Motor - Belt - Drives) 980-1218

#NI

All parts diagram

Blower assembly (less motor - belt - drives)

Part #980-1218

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

Cad Cell H-c554-1018; Note 2 - Current Model Is Supplied 21-0831
#32

Replacement parts diagram

Cad cell h-c554-1018; note 2 - current model is supplied

Part #21-0831

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

Blower Assembly (less Motor - Belt - Drives) 980-1209

#NI

All parts diagram

Blower assembly (less motor - belt - drives)

Part #980-1209

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

Heat Exchanger Assembly 900-4401
#23C

Replacement parts diagram

Heat exchanger assembly

Part #900-4401

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

Filter Rail - Center 305-6141

#NI

All parts diagram

Filter rail - center

Part #305-6141

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

Blower Assembly (complete W/ Motor) 10-8d 980-0184

#NI

All parts diagram

Blower assembly (complete w/ motor) 10-8d

Part #980-0184

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…

Read more
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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