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Gas Water Heater

Model # HJ640PORSCGA Official Maytag water heater

Here are the diagrams and repair parts for Official Maytag HJ640PORSCGA water heater, as well as links to manuals and error code tables, if available.

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Browse Parts forHJ640PORSCGA Water Heaters

  • 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 66001327
    #12A

    Body diagram

    Manifold

    Part #66001327

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

  • Drain Valve 66001181
    #6A

    Body diagram

    Drain valve

    Part #66001181

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

  • Burner Orifice 66001170
    #11B

    Body diagram

    Burner orifice

    Part #66001170

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

  • Inner Door 66001029
    #15

    Body diagram

    Inner door

    Part #66001029

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

  • Outer Door 66001190
    #16

    Body diagram

    Outer door

    Part #66001190

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

  • Thermocouple 66001274
    #9

    Body diagram

    Thermocouple

    Part #66001274

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

  • Natural Gas Pilot 66001023
    #8

    Body diagram

    Natural gas pilot

    Part #66001023

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

  • Gas Conversion Kit Valve 66001410
    #14C

    Body diagram

    Gas conversion kit valve

    Part #66001410

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

  • Burner Orifice 66001166
    #11A

    Body diagram

    Burner orifice

    Part #66001166

    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: 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,…

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

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

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.…

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