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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Model diagram and schematic

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Showing 10 of 41 parts  |

Valve 181508-31
#18

Water heater diagram

Valve

Part #181508-31

Replaced by #100109724

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Manufacturer substitution
This part replaces 181508-31. Substitute parts can look different from the original.
In Stock
Parts Bag 183509
#25

Water heater diagram

Parts bag

Part #183509

Replaced by #9004460105

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Manufacturer substitution
This part replaces 183509. Substitute parts can look different from the original.
In Stock
Anode 183523-29
#1

Water heater diagram

Anode

Part #183523-29

Replaced by #100109624

?
Manufacturer substitution
This part replaces 183523-29. Substitute parts can look different from the original.
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.
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.
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.
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.
In Stock
Nox Screen 183619
#15

Water heater diagram

Nox screen

Part #183619

Replaced by #100111088

?
Manufacturer substitution
This part replaces 183619. Substitute parts can look different from the original.
In Stock
Hose Clamp 183545
#10

Water heater diagram

Hose clamp

Part #183545

Replaced by #9004461115

?
Manufacturer substitution
This part replaces 183545. Substitute parts can look different from the original.
This item is not returnable
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.
In Stock

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

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Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

Main causes: faulty pressure relief valve, water is overheating…

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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.

How to read a wiring schematic video

How to read a wiring schematic video

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Easy DIY water heater repairs

Easy DIY water heater repairs

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Water heater common questions

Water heater common questions

These common questions and answers can help you make the most of your water heater.…

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