Gas Water Heater

Model # FCG100250 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FCG100250 water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for
FCG100250 Water Heaters
Valve 180193-5
#11

Water heater diagram

Valve

Part #180193-5

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

Restrictor 35405
#17

Water heater diagram

Restrictor

Part #35405

This item is not returnable
In Stock
Draft Hood 39072-4
#14

Water heater diagram

Draft hood

Part #39072-4

$24.49
20% OFF Phone Price : $30.49
In Stock
Label 182798
#21

Water heater diagram

Label

Part #182798

Replaced by #182798-000

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Manufacturer substitution
This part replaces 182798. Substitute parts can look different from the original.
This item is not returnable
In Stock
Collar 20172-21
#10

Water heater diagram

Collar

Part #20172-21

Replaced by #9004610115

?
Manufacturer substitution
This part replaces 20172-21. Substitute parts can look different from the original.
In Stock
Nipple 194135
#25

Water heater diagram

Nipple

Part #194135

Replaced by #9004228005

?
Manufacturer substitution
This part replaces 194135. Substitute parts can look different from the original.
In Stock
Label 181376
#18

Water heater diagram

Label

Part #181376

Replaced by #181376-000

?
Manufacturer substitution
This part replaces 181376. Substitute parts can look different from the original.
This item is not returnable
In Stock
Inner Door 39923
#12

Water heater diagram

Inner door

Part #39923

Replaced by #100109442

?
Manufacturer substitution
This part replaces 39923. Substitute parts can look different from the original.
In Stock
Valve 76527-3
#28

Water heater diagram

Valve

Part #76527-3

Replaced by #100108279

?
Manufacturer substitution
This part replaces 76527-3. Substitute parts can look different from the original.
In Stock
Label 41259
#19

Water heater diagram

Label

Part #41259

Replaced by #041259-000

?
Manufacturer substitution
This part replaces 41259. Substitute parts can look different from the original.
This item is not returnable
In Stock

Most common symptoms to help you fix your water heaters

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Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

Main causes: faulty pressure relief valve, water is overheating…

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Effective articles & videos to help repair your water heaters

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

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…