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AO Smith FGR40237 water heater

AO Smith FGR40237 water heater Parts

Here are the diagrams and repair parts for AO Smith FGR40237 water heater, as well as links to manuals and error code tables, if available.

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Browse Parts for FGR40237 Water Heaters

  • Label for AO Smith FGR40237 - Part 181139

    Water heater diagram

    Label

    Part #181139

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

  • Nipple for AO Smith FGR40237 - Part 38469-4

    Water heater diagram

    Nipple

    Part #38469-4

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

  • Thermostat for AO Smith FGR40237 - Part 181775-3

    Water heater diagram

    Thermostat

    Part #181775-3

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

  • Pilot for AO Smith FGR40237 - Part 182165-4

    Water heater diagram

    Pilot

    Part #182165-4

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

  • Lid for AO Smith FGR40237 - Part 180522-700

    Water heater diagram

    Lid

    Part #180522-700

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

  • Orifice for AO Smith FGR40237 - Part 181791-51

    Water heater diagram

    Orifice

    Part #181791-51

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

  • Anode for AO Smith FGR40237 - Part 43816-38

    Water heater diagram

    Anode

    Part #43816-38

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

  • Door Cover for AO Smith FGR40237 - Part 180596

    Water heater diagram

    Door Cover

    Part #180596

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

  • Anode for AO Smith FGR40237 - Part 181125-42

    Water heater diagram

    Anode

    Part #181125-42

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

  • Burner for AO Smith FGR40237 - Part 182666-20

    Water heater diagram

    Burner

    Part #182666-20

    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…

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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