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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Browse Parts for
FPD40270 Water Heaters
Angle,l 181450
#14

Water heater diagram

Angle,l

Part #181450

This item is not returnable
In Stock
Restrictor 182275
#24

Water heater diagram

Restrictor

Part #182275

Replaced by #182275-000

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Manufacturer substitution
This part replaces 182275. Substitute parts can look different from the original.
In Stock
Installation Assembly 183092
#NI

Water heater diagram

Installation assembly

Part #183092

Replaced by #183092-000

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Manufacturer substitution
This part replaces 183092. Substitute parts can look different from the original.
In Stock
Igniter Assembly 184047
#9

Water heater diagram

Igniter assembly

Part #184047

Replaced by #100109355

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Manufacturer substitution
This part replaces 184047. Substitute parts can look different from the original.
In Stock
Bi-metal Tip 21224
#26

Water heater diagram

Bi-metal tip

Part #21224

Replaced by #9004660105

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Manufacturer substitution
This part replaces 21224. Substitute parts can look different from the original.
In Stock
Anode Rod 183463-26
#1A

Water heater diagram

Anode rod

Part #183463-26

Replaced by #100109434

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Manufacturer substitution
This part replaces 183463-26. Substitute parts can look different from the original.
In Stock
Anode Rod 183523-26
#1

Water heater diagram

Anode rod

Part #183523-26

Replaced by #100109624

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Manufacturer substitution
This part replaces 183523-26. Substitute parts can look different from the original.
In Stock
Box Bottom 181490-1
#6

Water heater diagram

Box bottom

Part #181490-1

Replaced by #181490-001

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Manufacturer substitution
This part replaces 181490-1. Substitute parts can look different from the original.
In Stock
Collar 20172-21
#12

Water heater diagram

Collar

Part #20172-21

Replaced by #9004610115

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Manufacturer substitution
This part replaces 20172-21. Substitute parts can look different from the original.
In Stock
Sealant 181564
#36

Water heater diagram

Sealant

Part #181564

Replaced by #100109821

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Manufacturer substitution
This part replaces 181564. 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.

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

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

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

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

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

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.…