Amana
Furnace

Model # SU-125A3 Official Amana gas-fired upflow furnace

Here are the diagrams and repair parts for Official Amana SU-125A3 gas-fired upflow 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 197 parts  |

Flue Outlet Pouch Gasket 22-2366
#45A

(su-75) (su-100) (su-125) (su-150) (su-175) (su-200) diagram

Flue outlet pouch gasket

Part #22-2366

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

Blower Base Seal Strip And Baffle 252-6029
#46C

(su-75) (su-100) (su-125) (su-150) (su-175) (su-200) diagram

Blower base seal strip and baffle

Part #252-6029

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

Motor Support (belt Drive Units Only) 980-1485
Motor support (belt drive units only)

Part #980-1485

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

Blower Assembly (w/motor) 980-0196
#1C

(su-125ah) (su-125a3) (su-125a4) (su-125bh) (su-125b3) (su-125b4) (su-150ah) (su-150a3) (su-150a4) (su-150bh) (su-150b4) (su-150b5) (su-175bh) (su-175b4) (su-175b5) (su-200bh) (su-200b5) (su-200b6) diagram

Blower assembly (w/motor)

Part #980-0196

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

Vestibule Accesss Door Hanger - Right 970-0005
#42

(su-75) (su-100) (su-125) (su-150) (su-175) (su-200) diagram

Vestibule accesss door hanger - right

Part #970-0005

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

Pressure Regulator Cover Plate (ab390081a) 75,000-150,00 21-0597
Pressure regulator cover plate (ab390081a) 75,000-150,00

Part #21-0597

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

Furnace Blower Housing Assembly 980-1250
#3A

(su-125ah) (su-125a3) (su-125a4) (su-125bh) (su-125b3) (su-125b4) (su-150ah) (su-150a3) (su-150a4) (su-150bh) (su-150b4) (su-150b5) (su-175bh) (su-175b4) (su-175b5) (su-200bh) (su-200b5) (su-200b6) diagram

Furnace blower housing assembly

Part #980-1250

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

Bearing Cups - 3/4" Lau #7667 20-5025
#8

(su-125ah) (su-125a3) (su-125a4) (su-125bh) (su-125b3) (su-125b4) (su-150ah) (su-150a3) (su-150a4) (su-150bh) (su-150b4) (su-150b5) (su-175bh) (su-175b4) (su-175b5) (su-200bh) (su-200b5) (su-200b6) diagram

Bearing cups - 3/4" lau #7667

Part #20-5025

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

Heating Element Assembly 905-0956
#47F

(su-75) (su-100) (su-125) (su-150) (su-175) (su-200) diagram

Heating element assembly

Part #905-0956

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

Power Head (m-h V8254a) For All Above Listed Valves Exce 21-0498
Power head (m-h v8254a) for all above listed valves exce

Part #21-0498

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

Repair guides for electric wall ovens

How to replace a wall oven broil element

How to replace a wall oven broil element

Follow these step-by-step instructions to replace the broiler element in an electric oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a temperature sensor on an electric wall oven

How to replace a temperature sensor on an electric wall oven

These step-by-step instructions guide you through replacing a temperature sensing probe on an electric wall oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a wall oven hidden bake element

How to replace a wall oven hidden bake element

These step-by-step instructions guide you through replacing the hidden bake element.…

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.…

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.…