Williams
Wall Heater

Model # 550DVX-R NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 550DVX-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 71 parts  |

Module P321096

#51

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Module

Part #P321096

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

Thermostat P106400

#50

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Thermostat

Part #P106400

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

Cont Unit P271000

#51A

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Cont unit

Part #P271000

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

Cover Assembly 11A103

#12

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Cover assembly

Part #11A103

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

Trim Cover 11A40

#8

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Trim cover

Part #11A40

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

Furnace Burner Flame Sensor P271100

#45A

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Furnace burner flame sensor

Part #P271100

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

Burn Spacer P018100

#49

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Burn spacer

Part #P018100

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

Furnace Motor Isolator P022800

#20

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Furnace motor isolator

Part #P022800

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

Gasket P151900

#27

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Gasket

Part #P151900

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.…