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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.

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Model diagram and schematic

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Showing 10 of 197 parts  |
Fan And Limit Control 21-0386
#22B

(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

Fan and limit control

Part #21-0386

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

Mainfold Assembly (less Controls) 985-1164
#41B

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

Mainfold assembly (less controls)

Part #985-1164

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

Blower Pulley 8 X 3/4 20-1564
#15A

(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 pulley 8 x 3/4

Part #20-1564

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

Motor Pulley 20-1509
#14A

(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 #20-1509

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

Vestibule Access Door Assembly 250-2750
#35A

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

Vestibule access door assembly

Part #250-2750

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

Mainfold Assembly (less Controls) 985-1184
#41D

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

Mainfold assembly (less controls)

Part #985-1184

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

Top Panel Assembly 250-1100
#29A

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

Top panel assembly

Part #250-1100

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

Pilot Burner W/orifice (m.h. Q308b1179) 21-0037
Pilot burner w/orifice (m.h. q308b1179)

Part #21-0037

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

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