Williams
Wall Heater

Model # 20GV-3T NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 20GV-3T-NAT wall 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 56 parts  |

Thermocouple P042100

#16

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Thermocouple

Part #P042100

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

Thermostat P251000

#20

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Thermostat

Part #P251000

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

Generator P043800

#17

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Generator

Part #P043800

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

Motor P320905

#25

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Motor

Part #P320905

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

Furnace 2-speed Fan Switch P320911A

#29

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Furnace 2-speed fan switch

Part #P320911A

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

Wire Bridle P320912

#30

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Wire bridle

Part #P320912

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

Furnace Pilot Burner P179900

#10

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Furnace pilot burner

Part #P179900

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

Fan Blade P320907

#26

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Fan blade

Part #P320907

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

Wire P321518

#34

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Wire

Part #P321518

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

Lock Nut P026200

#11

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Lock nut

Part #P026200

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

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator defrost control assembly

How to replace a refrigerator defrost control assembly

Follow these steps to replace the defrost control assembly if your Kenmore or LG French door refrigerator displays an er…

Repair difficulty
Time required
 120 minutes or less

Articles and videos for bottom-mount refrigerators

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a GE Refrigerator

See how to install the water filter on your GE refrigerator, no matter the filter type or refrigerator style.…

How to Replace the Water Filter in a Maytag Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

No matter what style Maytag refrigerator you have, we can walk you through replacing the water filter.…

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…