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Williams
Wall Heater

Model # 400DVI NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 400DVI-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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ALL PARTS
Showing 10 of 66 parts  |
Furnace Burner Flame Sensor P271100

#43

All parts diagram

Furnace burner flame sensor

Part #P271100

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

Owner's Manual P321004

#NI

All parts diagram

Owner's manual

Part #P321004

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

Wire Bridle 31B036

#NI

All parts diagram

Wire bridle

Part #31B036

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

Furnace Motor Isolator P022800

#18

All parts diagram

Furnace motor isolator

Part #P022800

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

Furnace Bottom Front Panel 11B103

#10

All parts diagram

Furnace bottom front panel

Part #11B103

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

Switch Box 11B05

#20

All parts diagram

Switch box

Part #11B05

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

Extension Assembly 11A97

#28

All parts diagram

Extension assembly

Part #11A97

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

Furnace Transformer P024200

#16

All parts diagram

Furnace transformer

Part #P024200

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

Fan Shroud 11B86

#6

All parts diagram

Fan shroud

Part #11B86

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

Furnace Burner Pan Gasket, 44-in P101600

#46

All parts diagram

Furnace burner pan gasket, 44-in

Part #P101600

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

Symptoms for gas ranges

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

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Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

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Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a gas range oven control board

How to replace a gas range oven control board

These step-by-step instructions explain how to replace an oven control board on a gas range…

Read more
Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas ranges

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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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.…

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Top questions about Sears and Sears PartsDirect

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