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Williams
Wall Heater

Model # 455 FX-R NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 455-FX-R-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 86 parts  |
Header Assy 7B114

#18A

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Header assy

Part #7B114

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

Outer Casing 7C55-2

#1A

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Outer casing

Part #7C55-2

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

Vent Cover 7B12

#15

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Vent cover

Part #7B12

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

Furnace Motor Isolator P022800

#25

All parts diagram

Furnace motor isolator

Part #P022800

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

Switch Box 11B05

#7

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Switch box

Part #11B05

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

Select Switch P296201

#9C

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Select switch

Part #P296201

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

Baffle Hndl 11C63

#29

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Baffle hndl

Part #11C63

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

Furnace Bottom Front Panel 11B103

#11

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Furnace bottom front panel

Part #11B103

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

Wire P321523

#51B

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Wire

Part #P321523

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

Liner Assembly 7B79

#2B

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Liner assembly

Part #7B79

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

Symptoms for gas ranges

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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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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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 range spark igniter electrode

How to replace a range spark igniter electrode

Learn how to replace the spark igniter electrode for the surface burners on a gas range or dual-fuel range.…

Read more
Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas ranges

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

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

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