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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.

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Model diagram and schematic

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Showing 10 of 197 parts  |
Furnace Blower Wheel 20-5073
#5A

(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 #20-5073

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

Blower Assembky (less Motor-drive-belt) 980-1206
#2

(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 assembky (less motor-drive-belt)

Part #980-1206

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

Down Draft Deflector Assembly 253-6000
#38D

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

Down draft deflector assembly

Part #253-6000

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 Base Assembly - 10-10 252-4856
#48I

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

Blower base assembly - 10-10

Part #252-4856

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

Blower Assembly (less Motor - Belt - Drives) 980-1200
#2

(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 (less motor - belt - drives)

Part #980-1200

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

Motor Direct Drive 20-9137
#13B

(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 #20-9137

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

Pilostat Power Unit (ab389418) 21-1003
Pilostat power unit (ab389418)

Part #21-1003

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

Blower Cutoff 980-1231
#4

(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 cutoff

Part #980-1231

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

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