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Amana
Furnace

Model # SU-175 Official Amana gas-fired upflow furnace

Here are the diagrams and repair parts for Official Amana SU-175 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  |
Heat-cool Relay 22-9644
Heat-cool relay

Part #22-9644

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

Thermocouple (h Q309a1028b) Nat. And L.p. Gas - 24" 21-0021
Thermocouple (h q309a1028b) nat. and l.p. gas - 24"

Part #21-0021

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

Flue Outlet Pouch Gasket 22-2368
#45C

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

Flue outlet pouch gasket

Part #22-2368

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

Furnace Blower Wheel 20-5045
#5

(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 #20-5045

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

Pressure Regulator Cover Plate (ab390081a) 75,000-150,00 21-0597
Pressure regulator cover plate (ab390081a) 75,000-150,00

Part #21-0597

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 Bearing (2 Req'd) 3/4" Lau 7114 20-5030
#7

(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 bearing (2 req'd) 3/4" lau 7114

Part #20-5030

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

Plastic Washer 20-5015
#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 washer

Part #20-5015

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 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

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