Kenmore
Gas Water Heater

Model #220374100 Official Kenmore 40-gallon gas water heater

Here are the diagrams and repair parts for Kenmore 220374100 40-gallon gas water heater, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

    Showing 10 of 19 parts

    Owner's Manual

    #NI

    All parts Diagram

    Owner's manual

    Part #AP11166
    This item is not returnable
    In Stock
    $6.99
    Orifice#5

    Replacement parts Diagram

    Orifice

    Part #AP7492JJ
    This item is not returnable
    In Stock
    $2.99
    Anode Rod#13

    Replacement parts Diagram

    Anode rod

    Part #AP11309Y
    In Stock
    $33.49
    Baffle#12

    Replacement parts Diagram

    Baffle

    Part #AS25811A
    In Stock
    $12.49
    Water Heater Burner Assembly#3

    Replacement parts Diagram

    Themocple

    Part #AP6379K
    Replaced by #AM35050EFF
    ?
    Manufacturer substitution
    This part replaces AP6379K. Substitute parts can look different from the original.
    In Stock
    $118.29 | 
    8% OFF 
    Phone Price: $128.29
    Water Heater Gas Control Valve#1

    Replacement parts Diagram

    Thermostat

    Part #AP8555B
    Replaced by #SP20164
    ?
    Manufacturer substitution
    This part replaces AP8555B. Substitute parts can look different from the original.
    In Stock
    $166.39 | 
    6% OFF 
    Phone Price: $176.39
    Gasket#16

    Replacement parts Diagram

    Tube gaskt

    Part #AP6948
    Replaced by #AP6948-3
    ?
    Manufacturer substitution
    This part replaces AP6948. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    Water Heater LP Pilot Burner#7

    Replacement parts Diagram

    Burner

    Part #AP8980B
    Replaced by #SP8980C
    ?
    Manufacturer substitution
    This part replaces AP8980B. Substitute parts can look different from the original.
    In Stock
    $34.03
    Water Heater Burner Assembly#4

    Replacement parts Diagram

    Brnr sply tb

    Part #AP8964E
    Replaced by #AM35050EFF
    ?
    Manufacturer substitution
    This part replaces AP8964E. Substitute parts can look different from the original.
    In Stock
    $118.29 | 
    8% OFF 
    Phone Price: $128.29
    Water Heater Temperature and Pressure Relief Valve#17

    Replacement parts Diagram

    Relief valve

    Part #AP6571B
    Replaced by #100XL-150
    ?
    Manufacturer substitution
    This part replaces AP6571B. Substitute parts can look different from the original.
    In Stock
    $13.99 | 
    13% OFF 
    Phone Price: $15.99

    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

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    Wiring schematic symbols explained video

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    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.