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AO Smith
Gas Water Heater

Model # FPD40271 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FPD40271 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 59 parts  |
Valve 76527-3
#55

Water heater diagram

Valve

Part #76527-3

Replaced by #9000071015

?
Manufacturer substitution
This part replaces 76527-3. Substitute parts can look different from the original.
BEST SELLER
$14.36 | 
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In Stock
Angle,l 181450
#14

Water heater diagram

Angle,l

Part #181450

This item is not returnable
$2.16
In Stock
Tee Tube 181762
#38

Water heater diagram

Tee tube

Part #181762

Replaced by #181762-000

?
Manufacturer substitution
This part replaces 181762. Substitute parts can look different from the original.
$67.99
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
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
Inlet Tube 183359-41
#50

Water heater diagram

Inlet tube

Part #183359-41

Replaced by #183359-041

?
Manufacturer substitution
This part replaces 183359-41. Substitute parts can look different from the original.
This item is not returnable
$6.49
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
Bi-metal Tip 21224
#26

Water heater diagram

Bi-metal tip

Part #21224

Replaced by #9004660105

?
Manufacturer substitution
This part replaces 21224. Substitute parts can look different from the original.
$72.99
In Stock
Drain Valve 42037
#53

Water heater diagram

Drain valve

Part #42037

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

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

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Why is my water heater making the water too hot?

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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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