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AO Smith
Gas Water Heater

Model # XVR40 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith XVR40 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:

  • Click a diagram to see the parts shown on that diagram.
  • 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 34 parts  |
Pilot Assembly 183824-190
#19

Water heater diagram

Pilot assembly

Part #183824-190

Replaced by #9003542

?
Manufacturer substitution
This part replaces 183824-190. Substitute parts can look different from the original.
$65.53 | 
8% OFF Phone Price : $71.53
In Stock
2nd Anode 184634-114
#21

Water heater diagram

2nd anode

Part #184634-114

Replaced by #9004257005

?
Manufacturer substitution
This part replaces 184634-114. Substitute parts can look different from the original.
$20.51 | 
23% OFF Phone Price : $26.51
In Stock
Temperature Valve 043151-000
#23

Water heater diagram

Temperature valve

Part #043151-000

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

Screen 183159-000
#1

Water heater diagram

Screen

Part #183159-000

Replaced by #100109216

?
Manufacturer substitution
This part replaces 183159-000. Substitute parts can look different from the original.
$22.86
In Stock
Burner Tube 183450-002
#6A

Water heater diagram

Burner tube

Part #183450-002

Replaced by #9003644005

?
Manufacturer substitution
This part replaces 183450-002. Substitute parts can look different from the original.
$33.99
In Stock
Insulation 183256-000
#NI

Water heater diagram

Insulation

Part #183256-000

Replaced by #9003716005

?
Manufacturer substitution
This part replaces 183256-000. Substitute parts can look different from the original.
$23.49
In Stock
Burner Tube 183163-002
#6

Water heater diagram

Burner tube

Part #183163-002

Replaced by #9003635005

?
Manufacturer substitution
This part replaces 183163-002. Substitute parts can look different from the original.
$66.49
In Stock
Drain Pan 23913-A
#26A

Water heater diagram

Drain pan

Part #23913-A

Replaced by #100108616

?
Manufacturer substitution
This part replaces 23913-A. Substitute parts can look different from the original.
$64.44
In Stock
Drain Pan 23912-A
#26

Water heater diagram

Drain pan

Part #23912-A

Replaced by #100108459

?
Manufacturer substitution
This part replaces 23912-A. Substitute parts can look different from the original.
$63.33
In Stock
Restrictor 034894-000
#10

Water heater diagram

Restrictor

Part #034894-000

Replaced by #100110078

?
Manufacturer substitution
This part replaces 034894-000. Substitute parts can look different from the original.
$27.78
In Stock

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Why is my water heater making the water too hot?

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

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