Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Reliance
Gas Water Heater

Model # 640YBVIT100 Official Reliance water heater

Here are the diagrams and repair parts for Official Reliance 640YBVIT100 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 20 parts  |
Kenmore Water Heater Valve Wiring Kit 9006022
#32

Water heater diagram

Kenmore water heater valve wiring kit

Part #9006022

$36.09 | 
14% OFF Phone Price : $42.09
In Stock
Outer Door 9003545
#22

Water heater diagram

Outer door

Part #9003545

Replaced by #100109299

?
Manufacturer substitution
This part replaces 9003545. Substitute parts can look different from the original.
$35.56
In Stock
Nipples-5" 9003977
#21

Water heater diagram

Nipples-5"

Part #9003977

Replaced by #100109655

?
Manufacturer substitution
This part replaces 9003977. Substitute parts can look different from the original.
$36.67
In Stock
Anode Rod 9003972
#2

Water heater diagram

Anode rod

Part #9003972

Replaced by #100109624

?
Manufacturer substitution
This part replaces 9003972. Substitute parts can look different from the original.
$31.11
In Stock
Diffuser 9003447
#16

Water heater diagram

Diffuser

Part #9003447

Replaced by #100109239

?
Manufacturer substitution
This part replaces 9003447. Substitute parts can look different from the original.
$23.33
In Stock
Dip Tube 9002067
#24

Water heater diagram

Dip tube

Part #9002067

Replaced by #100108710

?
Manufacturer substitution
This part replaces 9002067. Substitute parts can look different from the original.
$26.67
In Stock
State Water Heater Burner Assembly 9005938
#9

Water heater diagram

State water heater burner assembly

Part #9005938

Replaced by #100110753

?
Manufacturer substitution
This part replaces 9005938. Substitute parts can look different from the original.
$187.27
In Stock
Water Heater Temperature And Pressure Relief Valve 9000071
#26

Water heater diagram

Water heater temperature and pressure relief valve

Part #9000071

Replaced by #100108279

?
Manufacturer substitution
This part replaces 9000071. Substitute parts can look different from the original.
$32.22
In Stock
Water Heater Air Intake Screen (replaces 183159, 183159-000, 9003983) 9003406
#1

Water heater diagram

Water heater air intake screen (replaces 183159, 183159-000, 9003983)

Part #9003406

Replaced by #100109216

?
Manufacturer substitution
This part replaces 9003406. Substitute parts can look different from the original.
$22.86
In Stock
2-way 9004330
#25

Water heater diagram

2-way

Part #9004330

Replaced by #100263839

?
Manufacturer substitution
This part replaces 9004330. Substitute parts can look different from the original.
$34.44
In Stock

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

View all

Why isn't my water heater heating my water?

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

Read more

Why is there water in my water heater's drain pan?

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Read more

Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

Read more

Why isn't my water heater making enough hot water?

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

Read more

Why is my water heater's pressure relief valve dripping water?

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

Read more

Why isn't my water heater making the water hot enough?

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

Read more

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…

Read more

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.

View all
How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.…

Read more
Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…

Read more
Water heater common questions

Water heater common questions

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

Read more

Parts & More