Amana
Furnace

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

Here are the diagrams and repair parts for Official Amana SU-125 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  |

Rear Panel Assembly 254-7000
#33E

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

Rear panel assembly

Part #254-7000

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

Motor Direct Drive 20-9158
#13C

(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

Motor direct drive

Part #20-9158

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

Burner Tube Spacer 975-1045
#40B

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

Burner tube spacer

Part #975-1045

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

Thermocouple (m-h Q309a1020) Su-75 & Su-100 - Nat. And L 21-0016
Thermocouple (m-h q309a1020) su-75 & su-100 - nat. and l

Part #21-0016

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

Vestibule Access Door Assembly 254-2750
#35E

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

Vestibule access door assembly

Part #254-2750

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

Vestibule Access Door Assembly 253-2750
#35D

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

Vestibule access door assembly

Part #253-2750

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

Vestibule Panel Assembly 251-5000
#34B

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

Vestibule panel assembly

Part #251-5000

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

Blower Access Door Assembly 250-2450
#36A

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

Blower access door assembly

Part #250-2450

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

Blower Access Door Assembly 254-2450
#36E

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

Blower access door assembly

Part #254-2450

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

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…

Repair difficulty
Time required
 15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…

Repair difficulty
Time required
 15 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.…