Amana
Furnace

Model # SU-150A4 Official Amana gas-fired upflow furnace

Here are the diagrams and repair parts for Official Amana SU-150A4 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  |

Blower Assembly (w/motor) 980-0188
#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 #980-0188

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

Air Filter - 20 X 25 X 1 - Hi-velocity (1 Per) 22-1144
#26

(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

Air filter - 20 x 25 x 1 - hi-velocity (1 per)

Part #22-1144

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

Furnace Blower Shaft 20-4197
#6

(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 shaft

Part #20-4197

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

Main Burner Orifice (drill #41) - 25,000 Input Per Burne 22-1688
Main burner orifice (drill #41) - 25,000 input per burne

Part #22-1688

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

Universal Main Burners 910-0290
#51

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

Universal main burners

Part #910-0290

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

Furnace Blower Wheel 20-5047
#5B

(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 wheel

Part #20-5047

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

Blower Base Seal Strip And Baffle 251-6029
#46B

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

Blower base seal strip and baffle

Part #251-6029

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

Blower Base Assembly - 10-10d 253-4853
#48H

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

Blower base assembly - 10-10d

Part #253-4853

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

Base Assembly 251-4010
#30B

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

Base assembly

Part #251-4010

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

Base Assembly 250-4000
#30A

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

Base assembly

Part #250-4000

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

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

Repair guides for gas chainsaws

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

How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

Repair difficulty
Time required
 15 minutes or less
How to replace a chainsaw carburetor

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

Repair difficulty
Time required
 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

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 chainsaw.

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.…