Model # 20GV-5 LPG Official Williams wall furnace

Here are the diagrams and repair parts for Official Williams 20GV-5-LPG wall furnace, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS

Showing 10 of 56 parts |

#30

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Wire bridle

Part #P320912

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

#29

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Furnace 2-speed fan switch

Part #P320911A

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

#10

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Furnace pilot burner

Part #P179900

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

#26

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Fan blade

Part #P320907

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

#25

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Motor

Part #P320905

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

#18

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Manifold

Part #P182400

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

#15D

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Valve

Part #P172100

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

#35

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Wire

Part #P321519

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

#20

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Thermostat

Part #P251000

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

#16

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Thermocouple

Part #P042100

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

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

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Why isn't my water softener using salt?

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

Why is there no display on my water softener?

Main causes: lack of electrical power, bad power transformer, faulty timer…

Why does my water softener overflow?

Main causes: faulty brine valve assembly, bad rotor valve…

Why does my water softener leak water?

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

Why are water softener resin beads in my water?

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

Why is my softened water salty?

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

Why isn't my water softener softening my water?

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

Why isn't my water softener meter working?

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

Repair guides for water softeners

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

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How to replace a water softener venturi

The venturi valve in your water softener draws brine water from the salt tank to the resin tank for regeneration. Follow…

Repair difficulty

Time required

15 minutes or less

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

Repair difficulty

Time required

30 minutes or less

How to replace a water softener timer

The timer is the control board you use to program the water softener. If the timer isn’t accepting commands when you pus…

Repair difficulty

Time required

15 minutes or less

Articles and videos for water softeners

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

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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

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

Model # 20GV-5 LPG Official Williams wall furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for water softeners

Why isn't my water softener using salt?

Why is there no display on my water softener?

Why does my water softener overflow?

Why does my water softener leak water?

Why are water softener resin beads in my water?

Why is my softened water salty?

Why isn't my water softener softening my water?

Why isn't my water softener meter working?

Repair guides for water softeners

How to replace a water softener venturi

How to replace a water softener rotor position switch

How to replace a water softener timer

Articles and videos for water softeners

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

Top questions about Sears and Sears PartsDirect

How to use a multimeter to test electrical parts video

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