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AO Smith
Gas Water Heater

Model # XCV40 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith XCV40 water heater, as well as links to manuals and error code tables, if available.

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  • 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”.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 34 parts  |
Control Valve 182792-000
#11A

Water heater diagram

Control valve

Part #182792-000

Replaced by #9003408005

?
Manufacturer substitution
This part replaces 182792-000. Substitute parts can look different from the original.
$277.19 | 
$12.00 OFF Phone Price : $289.19
In Stock
Burner Tube 184823-000
#6

Water heater diagram

Burner tube

Part #184823-000

$20.49
In Stock
Burner Tube 184825-000
#6A

Water heater diagram

Burner tube

Part #184825-000

$20.49
In Stock
Control Valve 182791-004
#11

Water heater diagram

Control valve

Part #182791-004

Replaced by #100109217

?
Manufacturer substitution
This part replaces 182791-004. Substitute parts can look different from the original.
$229.09
In Stock
Screen 183159-000
#1

Water heater diagram

Screen

Part #183159-000

Replaced by #100109216

?
Manufacturer substitution
This part replaces 183159-000. Substitute parts can look different from the original.
$22.86
In Stock
Natural Gas Orifice 181508-033
#5

Water heater diagram

Natural gas orifice

Part #181508-033

Replaced by #100109266

?
Manufacturer substitution
This part replaces 181508-033. Substitute parts can look different from the original.
$28.89
In Stock
Release Valve 076527-000
#23

Water heater diagram

Release valve

Part #076527-000

Replaced by #100108279

?
Manufacturer substitution
This part replaces 076527-000. Substitute parts can look different from the original.
$32.22
In Stock
Inlet Tube 183776-040
#13

Water heater diagram

Inlet tube

Part #183776-040

Replaced by #100108854

?
Manufacturer substitution
This part replaces 183776-040. Substitute parts can look different from the original.
$31.11
In Stock
Burner Head 183504-000
#4

Water heater diagram

Burner head

Part #183504-000

Replaced by #100109206

?
Manufacturer substitution
This part replaces 183504-000. Substitute parts can look different from the original.
$45.56
In Stock
Restrictor 034894-000
#10

Water heater diagram

Restrictor

Part #034894-000

Replaced by #100110078

?
Manufacturer substitution
This part replaces 034894-000. Substitute parts can look different from the original.
$27.78
In Stock

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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?

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