Thermar
Gas Water Heater

Model #PM1000DV Official Thermar gas direct vent

Here are the diagrams and repair parts for Thermar PM1000DV gas direct vent, as well as links to manuals and error code tables, if available.

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Error Codes

    Showing 10 of 39 parts

    Pilot Assembly#28

    Replacement parts Diagram

    Pilot assembly

    Part #239-37380-00

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

    Stp Button#33

    Replacement parts Diagram

    Stp button

    Part #239-37333-00

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

    Blade Assembly#9

    Replacement parts Diagram

    Blade assembly

    Part #239-37327-00

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

    Heat Exchanger Assembly#3

    Replacement parts Diagram

    Heat exchanger assembly

    Part #PM20-330

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

    REAR CHASSIS ASSEMBLY#1

    Replacement parts Diagram

    Rear chassis assembly

    Part #PM20-320

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

    Pilot Assembly#27

    Replacement parts Diagram

    Pilot assembly

    Part #239-37379-00

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

    Connection#4

    Replacement parts Diagram

    Connection

    Part #239-37346-00

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

    Sensing Bulb#22

    Replacement parts Diagram

    Sensing bulb

    Part #239-37323-00

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

    Valve#21A

    Replacement parts Diagram

    Valve

    Part #239-37341-00

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

    Igniter#30

    Replacement parts Diagram

    Igniter

    Part #239-37337-00

    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.

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    Wiring schematic symbols explained video

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    April 10, 2020

    Cleaning your appliances after a drinking water advisory

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