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Maytag
Gas Water Heater

Model # HJ640PBDSCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640PBDSCGA 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 44 parts  |
Water Heater Temperature And Pressure Relief Valve 66001216
#13

Body diagram

Water heater temperature and pressure relief valve

Part #66001216

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

Burner 66001027
#11

Body diagram

Burner

Part #66001027

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

Protector, W 66001426
#25

Body diagram

Protector, w

Part #66001426

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

Tube Pilot 66001188
#8

Body diagram

Tube pilot

Part #66001188

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

Dip Tube 66001279
#15A

Body diagram

Dip tube

Part #66001279

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

Manifold 66001037
#6

Body diagram

Manifold

Part #66001037

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

Access Door 66001205
#1

Body diagram

Access door

Part #66001205

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

Collar Liner 66001446
#22

Body diagram

Collar liner

Part #66001446

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

Natural Gas Pilot 66001192
#10

Body diagram

Natural gas pilot

Part #66001192

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 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 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 making the water too hot?

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

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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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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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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

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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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