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Amana
Furnace

Model # SU-125A4 Official Amana gas-fired upflow furnace

Here are the diagrams and repair parts for Official Amana SU-125A4 gas-fired upflow 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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Showing 10 of 197 parts  |
Vestibule Access Door Assembly 251-2750
#35B

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

Vestibule access door assembly

Part #251-2750

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

Furnace Blower Shaft 20-5021
#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 #20-5021

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

Draft Hood Assembly 975-0223
#50F

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

Draft hood assembly

Part #975-0223

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

Vestibule Panel Assembly 252-5000
#34C

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

Vestibule panel assembly

Part #252-5000

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

Motor Adjustable Tail Piece Assembly 980-1285
#17

(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 adjustable tail piece assembly

Part #980-1285

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

Vestibule Panel Assembly 250-5000
#34A

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

Vestibule panel assembly

Part #250-5000

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

Plastic Washers (2 Req.) 20-5957
#10

(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

Plastic washers (2 req.)

Part #20-5957

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

Motor Pulley 20-1520
#14B

(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 pulley

Part #20-1520

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

Heating Element Assembly 905-0307
#47D

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

Heating element assembly

Part #905-0307

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

Combination Gas Valve (m-h V8292a1001 - 3/4 X 3/4) 175,0 21-0571
Combination gas valve (m-h v8292a1001 - 3/4 x 3/4) 175,0

Part #21-0571

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

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