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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Browse Parts for
HJ640NBDVTCGA Water Heaters
Manifold 66001297
#18

Body diagram

Manifold

Part #66001297

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

Drain Valve 66001181
#17

Body diagram

Drain valve

Part #66001181

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

Blower 66001290
#4

Body diagram

Blower

Part #66001290

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

Horizontal V 66001344
#30

Body diagram

Horizontal v

Part #66001344

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

Ven Adapter 66001289
#3

Body diagram

Ven adapter

Part #66001289

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

Gas Conversion Kit Valve 66001296
#22A

Body diagram

Gas conversion kit valve

Part #66001296

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

Manual, Use & Care (frch/eng) (non-illus) 66001127
#32

Body diagram

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

Part #66001127

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

Flue Baffle 66001293
#27

Body diagram

Flue baffle

Part #66001293

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

Washer, Drai 66001021
#17A

Body diagram

Washer, drai

Part #66001021

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.

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

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

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

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

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

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

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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.

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.…

Easy DIY water heater repairs

Easy DIY water heater repairs

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

Water heater common questions

Water heater common questions

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