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Marathon MX85138 water heater

Marathon MX85138 water heater Parts

Here are the diagrams and repair parts for Marathon MX85138 water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for MX85138 Water Heaters

  • Owner's Manual for Marathon MX85138 - Part 210390

    #NI

    All parts diagram

    Owner's Manual

    Part #210390

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

  • Dip Tube for Marathon MX85138 - Part 230023

    Functional replacement parts diagram

    Dip Tube

    Part #230023

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

  • Dip Tube for Marathon MX85138 - Part 230012

    Functional replacement parts diagram

    Dip Tube

    Part #230012

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

  • Dip Tube for Marathon MX85138 - Part 230013

    Functional replacement parts diagram

    Dip Tube

    Part #230013

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

  • Panel for Marathon MX85138 - Part 410968

    Functional replacement parts diagram

    Panel

    Part #410968

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

  • Bushing for Marathon MX85138 - Part 330030

    Functional replacement parts diagram

    Bushing

    Part #330030

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

  • Temperature And Pressure Relief Valve for Marathon MX85138 - Part 330040

    Temperature And Pressure Relief Valve

    Part #330040

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

  • 3/4 In. N.p.t. X 1 In. Extension for Marathon MX85138 - Part N/P

    3/4 In. N.p.t. X 1 In. Extension

    Part #N/P

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

  • Panel for Marathon MX85138 - Part 410951

    Functional replacement parts diagram

    Panel

    Part #410951

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

  • Panel for Marathon MX85138 - Part 410364

    Functional replacement parts diagram

    Panel

    Part #410364

    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: faulty pressure relief valve, water is overheating…

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

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: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

Main causes: water supply needs chlorine treatment, anode rod too reactive…

Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Repair time and Difficulty

 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Repair time and Difficulty

 15 minutes or less
How to replace an electric water heater thermostat

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 h…

Repair time and Difficulty

 30 minutes or less

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.

Quiz: Are you abusing your appliances?

Quiz: Are you abusing your appliances?

Take our quiz to see how well you treat your appliances. Then, find out what you can do to help them last longer.…

Water heater common questions

Water heater common questions

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

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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