Amana
Furnace

Model # GS125B3 Official Amana gas-fired furnace

Here are the diagrams and repair parts for Official Amana GS125B3 gas-fired 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 194 parts  |

Limit Switch 21-0149
Limit switch

Part #21-0149

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

Pilot Burner W/orifice (m.h. Q308b1179) 21-0037
#67

(gs050) (gs075) (gs100) (gs125) (gs150) (gs165) diagram

Pilot burner w/orifice (m.h. q308b1179)

Part #21-0037

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

Blower Wheel, 3/4 Bore 20-5042
#5C

(gs50ah) (gs50aa) (gs50a2) (gs50da) (gs075ah) (gs075aa) (gs075a2) (gs075da) (gs075a3) (gs075fa) (gs075bh) (gs075ma) (gs075b2) (gs075pa) (gs075ra) (gs075b3) (gs100aa) (gs100ah) (gs100a2) (gs100da) (gs100fa) (gs100a3) (gs100a4) (gs100ga) (gs100bh) (gs100ma diagram

Blower wheel, 3/4 bore

Part #20-5042

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

Pilot Burner W/orifice (m.h. Q308b1187) 21-0039
#67

(gs050) (gs075) (gs100) (gs125) (gs150) (gs165) diagram

Pilot burner w/orifice (m.h. q308b1187)

Part #21-0039

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

Case 970-0010
Case

Part #970-0010

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

Blower Cutoff 980-1132
#4A

(gs50ah) (gs50aa) (gs50a2) (gs50da) (gs075ah) (gs075aa) (gs075a2) (gs075da) (gs075a3) (gs075fa) (gs075bh) (gs075ma) (gs075b2) (gs075pa) (gs075ra) (gs075b3) (gs100aa) (gs100ah) (gs100a2) (gs100da) (gs100fa) (gs100a3) (gs100a4) (gs100ga) (gs100bh) (gs100ma diagram

Blower cutoff

Part #980-1132

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

Mainfold Assembly (less Controls) 985-1164
#45C

(gs050) (gs075) (gs100) (gs125) (gs150) (gs165) diagram

Mainfold assembly (less controls)

Part #985-1164

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

Top Front Panel 271-1100
#38E

(gs050) (gs075) (gs100) (gs125) (gs150) (gs165) diagram

Top front panel

Part #271-1100

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

Adjustable Air Shutters 910-0210
#56

(gs050) (gs075) (gs100) (gs125) (gs150) (gs165) diagram

Adjustable air shutters

Part #910-0210

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

Blower Cutoff 980-1230
Blower cutoff

Part #980-1230

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

Repair guides for chest freezers

How to replace a freezer compressor start relay

How to replace a freezer compressor start relay

The compressor start relay starts the compressor. If the compressor won’t start, follow these steps to replace a defect…

Repair difficulty
Time required
 15 minutes or less
How to replace a freezer temperature control thermostat

How to replace a freezer temperature control thermostat

The cold control thermostat regulates the freezer temperature. A defective cold control thermostat can prevent the compr…

Repair difficulty
Time required
 15 minutes or less
How to replace a freezer lid gasket

How to replace a freezer lid gasket

The lid gasket prevents air and moisture from entering the freezer when the lid is closed. Follow these steps to replace…

Repair difficulty
Time required
 30 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.…

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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.…

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