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Maytag
Gas Water Heater

Model # HJ640NBDVTCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640NBDVTCGA 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 40 parts  |
Inner Door 66001029
#16

Body diagram

Inner door

Part #66001029

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

Ve Terminal 66001255
#1

Body diagram

Ve terminal

Part #66001255

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

Access Clips 66001204
Access clips

Part #66001204

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

Clips, Jacke 66001242
Clips, jacke

Part #66001242

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

Mounting Bracket 66001295
#24

Body diagram

Mounting bracket

Part #66001295

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

Dip Tube 66001305
#11

Body diagram

Dip tube

Part #66001305

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

Power Cord 66001372
#23

Body diagram

Power cord

Part #66001372

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

Wall Collar 66001343
#2

Body diagram

Wall collar

Part #66001343

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

Gasket 66001300
#9

Body diagram

Gasket

Part #66001300

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

Access Door 66001206
#20

Body diagram

Access door

Part #66001206

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

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Easy DIY water heater repairs

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Water heater common questions

Water heater common questions

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