Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number

AO Smith GPDH50100 water heater Parts

Here are the diagrams and repair parts for AO Smith GPDH50100 water heater, as well as links to manuals and error code tables, if available.

AO Smith GPDH50100 water heater
By Schematic
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for GPDH50100 Water Heaters

  • Burner Orifice-prop Gas for AO Smith GPDH50100 - Part 181791-051

    Water heater diagram

    Burner Orifice-prop Gas

    Part #181791-051

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

  • Vent Cap for AO Smith GPDH50100 - Part 192815-000

    Water heater diagram

    Vent Cap

    Part #192815-000

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

  • Vent Hood for AO Smith GPDH50100 - Part 0015143280

    Water heater diagram

    Vent Hood

    Part #0015143280

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

  • Thermostat for AO Smith GPDH50100 - Part 184768-004

    Water heater diagram

    Thermostat

    Part #184768-004

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

  • Switch Cover for AO Smith GPDH50100 - Part 184316-000

    Water heater diagram

    Switch Cover

    Part #184316-000

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

  • Natural Gas Orifice for AO Smith GPDH50100 - Part 181507-033

    Water heater diagram

    Natural Gas Orifice

    Part #181507-033

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

  • Manifold for AO Smith GPDH50100 - Part 184325-001

    Water heater diagram

    Manifold

    Part #184325-001

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

  • Door for AO Smith GPDH50100 - Part 0003901050

    Water heater diagram

    Door

    Part #0003901050

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

  • Thermostat for AO Smith GPDH50100 - Part 184768-005

    Water heater diagram

    Thermostat

    Part #184768-005

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

  • Ac Cord for AO Smith GPDH50100 - Part 181345-000

    Water heater diagram

    Ac Cord

    Part #181345-000

    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.…

Parts & More

Angle Grinder
Automotive
Electric Range
Gas Cooktop
Mechanical Sewing Machine
Office
Painting Power Tool
Parts
Rear-Engine Riding Mower
Side-By-Side Refrigerator
Top-Mount Refrigerator
Upright Freezer
Washer