Gas Water Heater

Model # HJ640NORTCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640NORTCGA water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for
HJ640NORTCGA Water Heaters
Temperature Valve 66001079
#5

Body diagram

Temperature valve

Part #66001079

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

Burner 66001027
#13

Body diagram

Burner

Part #66001027

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

Flue Baffle 66001220
#2

Body diagram

Flue baffle

Part #66001220

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

Outer Door 66001186
#16

Body diagram

Outer door

Part #66001186

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

Dip Tube 66001307
#3A

Body diagram

Dip tube

Part #66001307

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

Gas Conversion Kit Valve 66001004
#14

Body diagram

Gas conversion kit valve

Part #66001004

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

Gas Conversion Kit Valve 66001183
#14B

Body diagram

Gas conversion kit valve

Part #66001183

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

Manifold 66001324
#12

Body diagram

Manifold

Part #66001324

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

Manifold 66001326
#12B

Body diagram

Manifold

Part #66001326

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

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

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

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

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

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

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

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

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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.…