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AO Smith
Gas Water Heater

Model # FPSH50270E Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FPSH50270E water heater, as well as links to manuals and error code tables, if available.

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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 41 parts  |
Valve 181508-31
#18

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
Burner 184052-1
#13

Water heater diagram

Burner

Part #184052-1

Replaced by #100111651

?
Manufacturer substitution
This part replaces 184052-1. Substitute parts can look different from the original.
$225.45
In Stock
Igniter Assembly 184047
#17

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
Collar 20172-21
#20

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
Parts Bag 183509
#25

Water heater diagram

Parts bag

Part #183509

Replaced by #9004460105

?
Manufacturer substitution
This part replaces 183509. Substitute parts can look different from the original.
$73.49
In Stock
Limit Switch 183380-2
#7

Water heater diagram

Limit switch

Part #183380-2

Replaced by #9004661115

?
Manufacturer substitution
This part replaces 183380-2. Substitute parts can look different from the original.
$105.49
In Stock
Hose Clamp 183545-1
#11

Water heater diagram

Hose clamp

Part #183545-1

Replaced by #9004462115

?
Manufacturer substitution
This part replaces 183545-1. Substitute parts can look different from the original.
This item is not returnable
$3.99
In Stock
Blower 183505
#6

Water heater diagram

Blower

Part #183505

Replaced by #9004306005

?
Manufacturer substitution
This part replaces 183505. Substitute parts can look different from the original.
$565.49
In Stock
Insulation 181639-1
#36

Water heater diagram

Insulation

Part #181639-1

Replaced by #9003971005

?
Manufacturer substitution
This part replaces 181639-1. Substitute parts can look different from the original.
$21.99
In Stock
Igniter 183630
#16

Water heater diagram

Igniter

Part #183630

Replaced by #100109355

?
Manufacturer substitution
This part replaces 183630. Substitute parts can look different from the original.
$160.00
In Stock

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