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AO Smith
Gas Water Heater

Model # FCG50246 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FCG50246 water heater, 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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Showing 10 of 37 parts  |
Thermostat 23736
#25

Water heater diagram

Thermostat

Part #23736

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

Natural Gas Burner 182730
Natural gas burner

Part #182730

Replaced by #100109226

?
Manufacturer substitution
This part replaces 182730. Substitute parts can look different from the original.
$44.44
In Stock
Baffle 181589
#2

Water heater diagram

Baffle

Part #181589

Replaced by #100111607

?
Manufacturer substitution
This part replaces 181589. Substitute parts can look different from the original.
$57.78
In Stock
Anode 43816-42
Anode

Part #43816-42

Replaced by #100108660

?
Manufacturer substitution
This part replaces 43816-42. Substitute parts can look different from the original.
$60.00
In Stock
Insert 181235
#15

Water heater diagram

Insert

Part #181235

Replaced by #183360-000

?
Manufacturer substitution
This part replaces 181235. Substitute parts can look different from the original.
$16.49
In Stock
Hanger 181360
#3

Water heater diagram

Hanger

Part #181360

Replaced by #9004362115

?
Manufacturer substitution
This part replaces 181360. Substitute parts can look different from the original.
$18.99
In Stock
Burner Tube 182727-3
Burner tube

Part #182727-3

Replaced by #182727-003

?
Manufacturer substitution
This part replaces 182727-3. Substitute parts can look different from the original.
$14.49
In Stock
Natural Gas Orifice 181508-32
#7A

Water heater diagram

Natural gas orifice

Part #181508-32

Replaced by #100110763

?
Manufacturer substitution
This part replaces 181508-32. Substitute parts can look different from the original.
$27.78
In Stock
Natural Gas Burner 182729-2
#8A

Water heater diagram

Natural gas burner

Part #182729-2

Replaced by #182729-006

?
Manufacturer substitution
This part replaces 182729-2. Substitute parts can look different from the original.
$24.49
In Stock
Valve 181508-31
#7

Water heater diagram

Valve

Part #181508-31

Replaced by #100109724

?
Manufacturer substitution
This part replaces 181508-31. Substitute parts can look different from the original.
$392.50
In Stock

Most common symptoms to help you fix your water heaters

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Why isn't my water heater heating my water?

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Why isn't my water heater making the water hot enough?

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

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Why is there water in my water heater's drain pan?

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

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Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

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Why isn't my water heater making enough hot water?

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

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Why is my water heater making the water too hot?

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

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Why is my water heater's pressure relief valve dripping water?

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

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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.

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Wiring schematic symbols explained video

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Easy DIY water heater repairs

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