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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 71 parts  |

Thermocouple P254000

#45

All parts diagram

Thermocouple

Part #P254000

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

Casing Assembly 11C42-1

#1

All parts diagram

Casing assembly

Part #11C42-1

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

Burn Spacer P018100

#49

All parts diagram

Burn spacer

Part #P018100

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

Tube Seal 11A41

#47

All parts diagram

Tube seal

Part #11A41

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 Transformer P024200

#18

All parts diagram

Furnace transformer

Part #P024200

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

Furnace Burner Flame Sensor P271100

#45A

All parts diagram

Furnace burner flame sensor

Part #P271100

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

Baffle Hndl 11C63

#6

All parts diagram

Baffle hndl

Part #11C63

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

Tubing Assembly 11C37

#3

All parts diagram

Tubing assembly

Part #11C37

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

Trim Cover 11A40

#8

All parts diagram

Trim cover

Part #11A40

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

Repair guides for electric wall ovens

How to replace a wall oven broil element

How to replace a wall oven broil element

Follow these step-by-step instructions to replace the broiler element in an electric oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a temperature sensor on an electric wall oven

How to replace a temperature sensor on an electric wall oven

These step-by-step instructions guide you through replacing a temperature sensing probe on an electric wall oven.…

Repair difficulty
Time required
 15 minutes or less
How to replace a wall oven hidden bake element

How to replace a wall oven hidden bake element

These step-by-step instructions guide you through replacing the hidden bake element.…

Repair difficulty
Time required
 30 minutes or less

Articles and videos for electric wall ovens

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

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

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

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Hidden bake element has long preheat

Hidden bake element has long preheat

Here's why ovens with hidden bake elements take longer to preheat.…