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Williams
Wall Heater

Model # 3003621 Official Williams furnace

Here are the diagrams and repair parts for Official Williams 3003621 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 10 parts  |
Furnace Wall-mounted Thermostat P322016
#9

Wall furnace diagram

Furnace wall-mounted thermostat

Part #P322016

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

Iron Burner P147400
#1

Wall furnace diagram

Iron burner

Part #P147400

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

Orifice P090553
#5

Wall furnace diagram

Orifice

Part #P090553

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

Furnace Gas Valve P295201A
#3

Wall furnace diagram

Furnace gas valve

Part #P295201A

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

Control-dr 8A103
#2

Wall furnace diagram

Control-dr

Part #8A103

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

Furnace Burner Igniter P322400
#7

Wall furnace diagram

Furnace burner igniter

Part #P322400

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

Pilot Lite P323416
#8

Wall furnace diagram

Pilot lite

Part #P323416

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

Hole Assy 12B40
#10

Wall furnace diagram

Hole assy

Part #12B40

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

Igniter P285500
#6

Wall furnace diagram

Igniter

Part #P285500

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

Manifold P147300
#4

Wall furnace diagram

Manifold

Part #P147300

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

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