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AO Smith
Gas Water Heater

Model # FPSH50270 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith FPSH50270 water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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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 40 parts  |
Burner,pg. 183325
#16

Water heater diagram

Burner,pg.

Part #183325

Replaced by #9003631005

?
Manufacturer substitution
This part replaces 183325. Substitute parts can look different from the original.
$46.79 | 
11% OFF Phone Price : $52.79
In Stock
Wiring Harness 183506-1
#42

Water heater diagram

Wiring harness

Part #183506-1

Replaced by #9006022015

?
Manufacturer substitution
This part replaces 183506-1. Substitute parts can look different from the original.
$40.60
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
Combo.valv 183760
#21

Water heater diagram

Combo.valv

Part #183760

Replaced by #100109724

?
Manufacturer substitution
This part replaces 183760. Substitute parts can look different from the original.
$392.50
In Stock
Burner Tube 184048-1
#19

Water heater diagram

Burner tube

Part #184048-1

Replaced by #184048-001

?
Manufacturer substitution
This part replaces 184048-1. Substitute parts can look different from the original.
$16.99
In Stock
Label 182734
#NI

Water heater diagram

Label

Part #182734

Replaced by #182734-000

?
Manufacturer substitution
This part replaces 182734. Substitute parts can look different from the original.
$13.99
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
Label 183765
#NI

Water heater diagram

Label

Part #183765

Replaced by #183765-000

?
Manufacturer substitution
This part replaces 183765. Substitute parts can look different from the original.
$8.49
In Stock
Wall Plate 182787
#26

Water heater diagram

Wall plate

Part #182787

Replaced by #9004435115

?
Manufacturer substitution
This part replaces 182787. Substitute parts can look different from the original.
$9.99
In Stock
Orifice 181508-30
#18

Water heater diagram

Orifice

Part #181508-30

Replaced by #100108636

?
Manufacturer substitution
This part replaces 181508-30. Substitute parts can look different from the original.
$21.43
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

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

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Using a wiring schematic to trace a current video

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