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AO Smith
Gas Water Heater

Model # GCNH50100 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GCNH50100 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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Error Codes

Model diagram and schematic

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Showing 10 of 19 parts  |
Ring 700795-021
#2

Water heater diagram

Ring

Part #700795-021

$16.25
In Stock
Water Heater Manifold Door Gasket 9006141015
#15

Water heater diagram

Water heater manifold door gasket

Part #9006141015

This item is not returnable
$25.49 | 
19% OFF Phone Price : $31.49
In Stock
Drafthood 700795-020
#1

Water heater diagram

Drafthood

Part #700795-020

Replaced by #100111362

?
Manufacturer substitution
This part replaces 700795-020. Substitute parts can look different from the original.
$34.44
In Stock
Dip Tube 9006431005
#6

Water heater diagram

Dip tube

Part #9006431005

Replaced by #100111192

?
Manufacturer substitution
This part replaces 9006431005. Substitute parts can look different from the original.
$28.89
In Stock
View Port 9006142015
#16

Water heater diagram

View port

Part #9006142015

Replaced by #9006142015

?
Manufacturer substitution
This part replaces 9006142015. Substitute parts can look different from the original.
$17.99
In Stock
Connector 9006449015
#14

Water heater diagram

Connector

Part #9006449015

Replaced by #100093865

?
Manufacturer substitution
This part replaces 9006449015. Substitute parts can look different from the original.
$27.78
In Stock
Heat Trap 9003915015
#4

Water heater diagram

Heat trap

Part #9003915015

Replaced by #100108409

?
Manufacturer substitution
This part replaces 9003915015. Substitute parts can look different from the original.
$25.71
In Stock
Anode Rod 9003892005
#7

Water heater diagram

Anode rod

Part #9003892005

Replaced by #100109594

?
Manufacturer substitution
This part replaces 9003892005. Substitute parts can look different from the original.
$55.56
In Stock
Flue Baffle 9006437005
#3

Water heater diagram

Flue baffle

Part #9006437005

Replaced by #100111198

?
Manufacturer substitution
This part replaces 9006437005. Substitute parts can look different from the original.
$72.22
In Stock
Thermocouple 9000056015
#NI

Water heater diagram

Thermocouple

Part #9000056015

Replaced by #100108267

?
Manufacturer substitution
This part replaces 9000056015. Substitute parts can look different from the original.
$28.57
In Stock

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