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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Browse Parts for
455 FX-R NAT Wall Furnace
Thermocouple P042100

#47

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Thermocouple

Part #P042100

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

Center Front Panel 11C60

#6A

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Center front panel

Part #11C60

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

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

Furnace Blower Fan Motor P321601

#27B

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Furnace blower fan motor

Part #P321601

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

Furnace Motor Isolator P022800

#25

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Furnace motor isolator

Part #P022800

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

Center Front Panel 11C59

#6B

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Center front panel

Part #11C59

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

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace the electronic control board inside a top-freezer refrigerator

How to replace the electronic control board inside a top-freezer refrigerator

The electronic control board is the "brains" of the refrigerator. Replace the electronic control board if it fails.…

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

How to replace a refrigerator temperature control thermostat

This helpful refrigerator repair guide explains how to replace the temperature control thermostat in a refrigerator.…

Repair difficulty
Time required
 15 minutes or less
How to replace the condenser fan motor in a top-freezer refrigerator

How to replace the condenser fan motor in a top-freezer refrigerator

The condenser fan is in the machine compartment of the refrigerator next to the compressor. It moves air across the cond…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for top-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.…