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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ALL PARTS

Showing 10 of 10 parts |

Wall furnace diagram

Control-dr

Part #8A103

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

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 #P090553

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

Wall furnace diagram

Furnace gas valve

Part #P295201A

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 lite

Part #P323416

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

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Why doesn't my snowblower auger turn?

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

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How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

Repair difficulty

Time required

15 minutes or less

How to replace a snowblower auger drive cable

A loose or snapped auger drive cable can prevent the auger from rotating. Follow this step-by-step guide to replace the …

Repair difficulty

Time required

15 minutes or less

How to replace a snowblower friction disc

The friction disc is one of the components of the drive system. If it's worn or damaged, the snowblower won't self-prope…

Repair difficulty

Time required

15 minutes or less

Articles and videos for gas snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

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Model # 3003621 Official Williams furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas snowblowers

Why doesn't my snowblower self propel?

Why does my snowblower engine run rough?

Why won't my snowblower throw snow far enough?

How do I tune up my snowblower?

Why won't my snowblower chute turn?

Why won't my snowblower start?

Why does my snowblower stop running after a few seconds?

Why won't my snowblower clear snow well?

Why doesn't my snowblower auger turn?

Repair guides for gas snowblowers

How to adjust snowblower engine valve lash

How to replace a snowblower auger drive cable

How to replace a snowblower friction disc

Articles and videos for gas snowblowers

How to tune up a snowblower video

Start-of-winter snowblower care

How to store a snowblower

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