Model # 3003622 Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 3003622 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.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 10 parts |

Wall furnace diagram

Furnace burner igniter

Part #P322400

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

Wall furnace diagram

Iron burner

Part #P147400

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

Wall furnace diagram

Furnace wall-mounted thermostat

Part #P322016

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

Wall furnace diagram

Orifice

Part #P090542

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

Wall furnace diagram

Furnace gas valve

Part #P295200A

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

Wall furnace diagram

Control-dr

Part #8A103

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

#10

Wall furnace diagram

Hole assy

Part #12B40

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

Wall furnace diagram

Pilot assembly

Part #P323415

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

Wall furnace diagram

Igniter

Part #P285500

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

Wall furnace diagram

Manifold

Part #P147300

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

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

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

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

Model # 3003622 Official Williams wall furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Repair guides for side-by-side refrigerators

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

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

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

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 Maytag Refrigerator

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

Parts & More

Stay Connected

Quick links

Let us help you

More resources