Maytag
Gas Water Heater

Model #HJ640PBPDT Maytag gas water heater

Here are the repair parts and diagrams for your Maytag HJ640PBPDT gas water heater. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

Save to my profileError Codes

Showing 10 of 42 parts

Baffle Adapt

#10

Body Diagram

Baffle adapt

Part #66001315

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

Horizontal V

#31

Body Diagram

Horizontal v

Part #66001344

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

CONTROL, GAS (NAT)

#15

Body Diagram

Control, gas (nat)

Part #66001527

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

Dip Tube

#28

Body Diagram

Dip tube

Part #66001670

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

Clips, Jacke

#18A

Body Diagram

Clips, jacke

Part #66001242

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

MANIFOLD (LP)

#22A

Body Diagram

Manifold (lp)

Part #66001660

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

Mounting Bracket

#14

Body Diagram

Mounting bracket

Part #66001295

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

Burner Orifice

#24C

Body Diagram

Burner orifice

Part #66001171

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

Drain Valve

#20

Body Diagram

Drain valve

Part #66001181

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

Switch Vent

#7

Body Diagram

Switch vent

Part #66001342

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

Symptoms common to all water heaters

Choose a symptom to see related water heater repairs.

Main causes: water supply needs chlorine treatment, anode rod too reactive
Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating element
Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excessive tank sediment
Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failure, bad thermocouple
Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve assembly failure
Main causes: faulty pressure relief valve, water is overheating
Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element, cracked tank

Articles and videos common to all water heaters

Use the advice and tips in these articles and videos to get the most out of your water heater.

November 1, 2018

How to read a wiring schematic video

By Sears PartsDirect staff

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

October 31, 2018

Cleaning your appliances after a drinking water advisory

By Julie Riebe

Find out how to clean and flush household appliances once a boil water advisory is lifted.

August 1, 2015

Water heater common questions

By Sears PartsDirect staff

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