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AO Smith
Gas Water Heater

Model # FPD40270 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FPD40270 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 59 parts  |
Angle,l 181450
#14

Water heater diagram

Angle,l

Part #181450

This item is not returnable
$2.16
In Stock
Igniter Assembly 184047
#9

Water heater diagram

Igniter assembly

Part #184047

Replaced by #100109355

?
Manufacturer substitution
This part replaces 184047. Substitute parts can look different from the original.
$160.00
In Stock
Natural Gas Burner 182730
#8

Water heater diagram

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
Exhaust Ay 181528
#NI

Water heater diagram

Exhaust ay

Part #181528

Replaced by #100108686

?
Manufacturer substitution
This part replaces 181528. Substitute parts can look different from the original.
$119.00
In Stock
Anode Rod 183523-26
#1

Water heater diagram

Anode rod

Part #183523-26

Replaced by #100109624

?
Manufacturer substitution
This part replaces 183523-26. Substitute parts can look different from the original.
$31.11
In Stock
Collar 20172-21
#12

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.
$15.99
In Stock
Box Bottom 181490-1
#6

Water heater diagram

Box bottom

Part #181490-1

Replaced by #181490-001

?
Manufacturer substitution
This part replaces 181490-1. Substitute parts can look different from the original.
$31.99
In Stock
Installation Assembly 183092
#NI

Water heater diagram

Installation assembly

Part #183092

Replaced by #183092-000

?
Manufacturer substitution
This part replaces 183092. Substitute parts can look different from the original.
$654.49
In Stock
Anode Rod 183463-26
#1A

Water heater diagram

Anode rod

Part #183463-26

Replaced by #100109434

?
Manufacturer substitution
This part replaces 183463-26. Substitute parts can look different from the original.
$36.67
In Stock
Coupling 182269
#29

Water heater diagram

Coupling

Part #182269

Replaced by #182269-000

?
Manufacturer substitution
This part replaces 182269. Substitute parts can look different from the original.
$17.99
In Stock

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