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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Maytag
Gas Water Heater

Model # HJ640NORSCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640NORSCGA 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 31 parts  |
Burner 66001027
#13

Body diagram

Burner

Part #66001027

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

Drain Valve 66001016
#6

Body diagram

Drain valve

Part #66001016

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

Gas Conversion Kit Valve 66001078
#14A

Body diagram

Gas conversion kit valve

Part #66001078

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

Manifold 66001326
#12

Body diagram

Manifold

Part #66001326

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

Burner Orifice 66001171
#11C

Body diagram

Burner orifice

Part #66001171

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

Manual, Use & Care (frch/eng) (non-illus) 66001126
#17

Body diagram

Manual, use & care (frch/eng) (non-illus)

Part #66001126

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

Anode Rod 66001157
#4

Body diagram

Anode rod

Part #66001157

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

Thermocouple 66001391
#9A

Body diagram

Thermocouple

Part #66001391

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

Thermocouple 66001274
#9

Body diagram

Thermocouple

Part #66001274

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

Inner Door 66001029
#15

Body diagram

Inner door

Part #66001029

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

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 making the water hot enough?

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

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 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 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

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 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 enough hot water?

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

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