Williams
Wall Heater

Model # 550DVI LPG Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 550DVI-LPG 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  |

Fan Shroud 11B86

#7

All parts diagram

Fan shroud

Part #11B86

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 Bottom Front Panel 11B103

#11

All parts diagram

Furnace bottom front panel

Part #11B103

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

Select Switch P200400

#14

All parts diagram

Select switch

Part #P200400

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

Furnace Burner Pan Gasket, 44-in P101600

#48

All parts diagram

Furnace burner pan gasket, 44-in

Part #P101600

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

Center Front Panel 11C59

#10

All parts diagram

Center front panel

Part #11C59

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

Frt Top Pnl 11B102

#9

All parts diagram

Frt top pnl

Part #11B102

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

Switch Box 11B05

#22

All parts diagram

Switch box

Part #11B05

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

Liner Assembly 7B79

#4

All parts diagram

Liner assembly

Part #7B79

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up...

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade...

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key...

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel...

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba...

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent...

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks....

Repair difficulty
Time required
60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope....

Repair difficulty
Time required
15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix....

Repair difficulty
Time required
15 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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....

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....

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho...