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AO Smith
Gas Water Heater

Model # GPCR50100 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GPCR50100 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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ALL PARTS
Showing 10 of 45 parts  |
Restrictor 184502-000
#29

Water heater diagram

Restrictor

Part #184502-000

$10.99
In Stock
Restrictor 184501-000
#28

Water heater diagram

Restrictor

Part #184501-000

This item is not returnable
$2.16
In Stock
Access Parts 183509-002
#23

Water heater diagram

Access parts

Part #183509-002

$54.49
In Stock
Water Heater Owner's Manual 184674-001
#NI

Water heater diagram

Water heater owner's manual

Part #184674-001

$8.49
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.
$31.11
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
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
Drain Valve 42037
#42

Water heater diagram

Drain valve

Part #42037

The manufacturer no longer makes this part, and there's no substitute part

Gas Valve 183760-2
#20

Water heater diagram

Gas valve

Part #183760-2

Replaced by #100109740

?
Manufacturer substitution
This part replaces 183760-2. Substitute parts can look different from the original.
$400.00
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

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