Model # 450 FX-R NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 450-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 |

#NI

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Wire bridle

Part #31B036

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

#6B

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Center front panel

Part #11C59

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

#9C

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Select switch

Part #P296201

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

#27B

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Furnace blower fan motor

Part #P321601

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

#2B

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Liner assembly

Part #7B79

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

#18A

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Header assy

Part #7B114

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

#47A

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Furnace burner flame sensor

Part #P271100

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

#9A

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Select switch

Part #P213400

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

#51B

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Wire

Part #P321523

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

#49

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Burn spacer

Part #P018100

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

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Model # 450 FX-R NAT Official Williams wall furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Repair guides for bottom-mount refrigerators

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

How to replace a refrigerator water valve

How to replace a refrigerator defrost control assembly

Articles and videos for bottom-mount refrigerators

How to Replace the Water Filter in a Maytag Refrigerator

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

Top questions about Sears and Sears PartsDirect

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