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Gas Water Heater

Model # TL200 Official Thermar tankless water heater

Here are the diagrams and repair parts for Official Thermar TL200 tankless water heater, as well as links to manuals and error code tables, if available.

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Browse Parts forTL200 Water Heaters

  • Thermocouple 10-13848
    #11

    Gas burners and manifold diagram

    Thermocouple

    Part #10-13848

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

  • O-ring 20-10047
    O-ring

    Part #20-10047

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

  • Manual Gasket 10-12848
    #12

    Gas burners and manifold diagram

    Manual gasket

    Part #10-12848

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

  • In/fil Assy 10-12873
    #20A

    Gas burners and manifold diagram

    In/fil assy

    Part #10-12873

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

  • E.c.o. Assy 10-13850
    #15

    Gas burners and manifold diagram

    E.c.o. assy

    Part #10-13850

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

  • O-ring 20-14834
    #28

    Gas burners and manifold diagram

    O-ring

    Part #20-14834

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

  • Button 10-14641
    #22

    Gas burners and manifold diagram

    Button

    Part #10-14641

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

  • Thermostat 10-13486
    #18

    Gas burners and manifold diagram

    Thermostat

    Part #10-13486

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

  • Button Assembly 10-13705
    #23

    Gas burners and manifold diagram

    Button assembly

    Part #10-13705

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

  • Elect Assy 10-12259
    #10

    Gas burners and manifold diagram

    Elect assy

    Part #10-12259

    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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