Rheem
Electric Water Heater

Model #81V40 Rheem 40-gallon power miser v electric water heater

Here are the diagrams and repair parts for Rheem 81V40 40-gallon power miser v electric water heater, as well as links to manuals and error code tables, if available.

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Error Codes

    Showing 10 of 17 parts

    Plate

    #4

    Functional replacement parts Diagram

    Plate

    Part #AM29892
    ?
    Manufacturer substitution
    This part replaces AS-29892. Substitute parts can look different from the original.
    This part replaces AS-29892
    $9.73

    In Stock

    Water Heater Drain Valve

    #15

    Functional replacement parts Diagram

    Water heater drain valve

    Part #9001588
    ?
    Manufacturer substitution
    This part replaces AP-10424-D. Substitute parts can look different from the original.
    This part replaces AP-10424-D
    $16.28

    Back Order

    Water Heater Dip Tube

    #2

    Functional replacement parts Diagram

    Water heater dip tube

    Part #SP11248R
    ?
    Manufacturer substitution
    This part replaces AS-21064-J. Substitute parts can look different from the original.
    This part replaces AS-21064-J
    $10.38

    In Stock

    Water Heater Thermostat

    #6

    Functional replacement parts Diagram

    Water heater thermostat

    Part #SP11698
    ?
    Manufacturer substitution
    This part replaces AP-10161. Substitute parts can look different from the original.
    This part replaces AP-10161
    $29.99

    In Stock

    Gasket

    #1

    Functional replacement parts Diagram

    Gasket

    Part #AP6948-3
    ?
    Manufacturer substitution
    This part replaces AP-6948. Substitute parts can look different from the original.
    This part replaces AP-6948
    This item is not returnable
    $2.16

    In Stock

    Water Heater Heating Element Gasket

    #10

    Functional replacement parts Diagram

    Water heater heating element gasket

    Part #SP6708
    ?
    Manufacturer substitution
    This part replaces AP-6708. Substitute parts can look different from the original.
    This part replaces AP-6708
    $9.21

    In Stock

    Element

    #11

    Functional replacement parts Diagram

    Element

    Part #AP-7485-ML

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

    Box Cover

    #5

    Functional replacement parts Diagram

    Box cover

    Part #AM29893
    ?
    Manufacturer substitution
    This part replaces AS-29893. Substitute parts can look different from the original.
    This part replaces AS-29893
    $9.21

    In Stock

    Shroud Valve

    #16

    Functional replacement parts Diagram

    Shroud valve

    Part #AP-2480

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

    Insulation

    #8

    Functional replacement parts Diagram

    Insulation

    Part #AP-8776

    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: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve assembly failure
    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: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating element
    Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excessive tank sediment
    Main causes: faulty pressure relief valve, water is overheating
    Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element, cracked tank

    Repair guides for electric water heaters

    How to replace an electric water heater anode rod

    If your hot water begins to smell like rotten eggs, replace the anode rod with a zinc-aluminum anode rod following the instructions in this repair guide.

    Repair difficulty
    Time required
     15 minutes or less
    How to replace an electric water heater thermostat

    If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water heater's thermostat.

    Repair difficulty
    Time required
     30 minutes or less
    July 1, 2015
    By Lyle Weischwill
    How to replace a water heater drain valve

    If the drain valve on your electric water heater is leaking water, replace it following these step-by-step instructions.

    Repair difficulty
    Time required
     30 minutes or less

    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.

    September 26, 2019

    Keeping your smart appliances secure from hackers

    By Lyle Weischwill

    Find out how to protect your smart appliances from malevolent invasions by hackers.

    November 1, 2018

    How to read a wiring schematic video

    By Sears PartsDirect staff

    Learn how to decipher symbols so you can buy the right part for your problem.

    August 1, 2015

    Water heater common questions

    By Sears PartsDirect staff

    These common questions and answers can help you make the most of your water heater.