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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Browse Parts for
HJ640PBDSCGA Water Heaters
Burner Orifice 66001159
#9D

Body diagram

Burner orifice

Part #66001159

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

Anode Rod 66001157
#14

Body diagram

Anode rod

Part #66001157

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

Flue Baffle 66001235
#16A

Body diagram

Flue baffle

Part #66001235

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

Thermostat 66001004
#3

Body diagram

Thermostat

Part #66001004

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

Thermostat 66001183
#3A

Body diagram

Thermostat

Part #66001183

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

Burner Orifice 66001040
#9B

Body diagram

Burner orifice

Part #66001040

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

6" Vent Wall 66001444
#23

Body diagram

6" vent wall

Part #66001444

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

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

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

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.

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.…

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.…

Easy DIY water heater repairs

Easy DIY water heater repairs

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