Williams
Wall Heater

Model # 400DVX-R NAT Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 400DVX-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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Showing 10 of 66 parts  |

Furnace Burner Flame Sensor P271100

#43

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Furnace burner flame sensor

Part #P271100

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

Owner's Manual P321004

#NI

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Owner's manual

Part #P321004

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

Wire Bridle 31B036

#NI

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Wire bridle

Part #31B036

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

Furnace Motor Isolator P022800

#18

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Furnace motor isolator

Part #P022800

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

Furnace Bottom Front Panel 11B103

#10

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Furnace bottom front panel

Part #11B103

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

Switch Box 11B05

#20

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Switch box

Part #11B05

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

Extension Assembly 11A97

#28

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Extension assembly

Part #11A97

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

Furnace Transformer P024200

#16

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Furnace transformer

Part #P024200

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

Fan Shroud 11B86

#6

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Fan shroud

Part #11B86

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

Furnace Burner Pan Gasket, 44-in P101600

#46

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Furnace burner pan gasket, 44-in

Part #P101600

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

Repair guides for side-by-side refrigerators

How to replace an ice dispenser motor in a side-by-side refrigerator

How to replace an ice dispenser motor in a side-by-side refrigerator

If your side-by-side refrigerator isn’t churning out ice, replacing the motor could fix the problem. These steps explain…

Repair difficulty
Time required
 45 minutes or less
How to replace a defrost heater in a side-by-side refrigerator

How to replace a defrost heater in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost heater could be faulty. Follow the…

Repair difficulty
Time required
 45 minutes or less
How to replace an evaporator fan motor in a side-by-side refrigerator

How to replace an evaporator fan motor in a side-by-side refrigerator

If your refrigerator isn't as cold as it should be, it could be that the evaporator fan motor isn't circulating air. Thi…

Repair difficulty
Time required
 60 minutes or less

Articles and videos for side-by-side 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.…