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Maytag
Gas Water Heater

Model # HJ640NOVIT Official Maytag gas water heater

Here are the diagrams and repair parts for Official Maytag HJ640NOVIT gas water heater, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 37 parts  |
Anode Rod 66001189
#22

Body diagram

Anode rod

Part #66001189

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

Dip Tube 66001279
#21

Body diagram

Dip tube

Part #66001279

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

Outer Door 66001190
#12

Body diagram

Outer door

Part #66001190

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

Temperature Valve 66001079
#20

Body diagram

Temperature valve

Part #66001079

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

Wiring Harness 66001526
#23

Body diagram

Wiring harness

Part #66001526

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

Manifold (lp) 66001533
#18B

Body diagram

Manifold (lp)

Part #66001533

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

Drain Pan 66001011
#24

Body diagram

Drain pan

Part #66001011

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

Burner Orifice 66001172
#17C

Body diagram

Burner orifice

Part #66001172

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

Water Heater Temperature And Pressure Relief Valve 66001216
#20A

Body diagram

Water heater temperature and pressure relief valve

Part #66001216

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.

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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…

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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,…

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Why does my hot water smell like rotten eggs?

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

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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…

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

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

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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…

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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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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.

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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.…

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Easy DIY water heater repairs

Easy DIY water heater repairs

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

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Water heater common questions

Water heater common questions

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

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