Maytag
Gas Water Heater

Model #HJ640NORS2CGA Official Maytag water heater

Here are the diagrams and repair parts for Maytag HJ640NORS2CGA water heater, as well as links to manuals and error code tables, if available.

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Error Codes

    Showing 10 of 31 parts

    Inner Door#15

    Body Diagram

    Inner door

    Part #66001029

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

    Manifold#12

    Body Diagram

    Manifold

    Part #66001326

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

    Natural Gas Pilot#8

    Body Diagram

    Natural gas pilot

    Part #66001023

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

    Thermocouple#9

    Body Diagram

    Thermocouple

    Part #66001274

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

    Burner Orifice#11C

    Body Diagram

    Burner orifice

    Part #66001171

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

    MANUAL, USE & CARE (FRCH/ENG) (Non-Illus)#17

    Body Diagram

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

    Part #66001126

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

    Outer Door#16

    Body Diagram

    Outer door

    Part #66001190

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

    Anode Rod#4

    Body Diagram

    Anode rod

    Part #66001157

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

    Dip Tube#3

    Body Diagram

    Dip tube

    Part #66001304

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

    Burner Orifice#11

    Body Diagram

    Burner orifice

    Part #66001161

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

    Symptoms common to all 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 failure, bad thermocouple
    Main causes: water supply needs chlorine treatment, anode rod too reactive
    Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excessive tank sediment
    Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating element
    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 assembly failure
    Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element, cracked tank

    Articles and videos common to all water heaters

    Use the advice and tips in these articles and videos to get the most out of your water heater.

    October 24, 2022

    Easy DIY appliance repairs that anyone can do

    By Lyle Weischwill

    Get advice on simple DIY fixes for appliances that you can safely do on your own.

    August 18, 2021

    Wiring schematic symbols explained video

    By Lyle Weischwill

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

    April 10, 2020

    Cleaning your appliances after a drinking water advisory

    By Julie Riebe

    Find out how to clean and flush household appliances once a boil water advisory is lifted.