AO Smith
Gas Water Heater

Model # GPDT50100 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GPDT50100 water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

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

Search
ALL PARTS
Showing 10 of 45 parts  |

Nipple 184633-002
#NI

Water heater diagram

Nipple

Part #184633-002

Replaced by #100108409

?
Manufacturer substitution
This part replaces 184633-002. Substitute parts can look different from the original.
In Stock
Dip Tube 183900-024
#13

Water heater diagram

Dip tube

Part #183900-024

Replaced by #100108611

?
Manufacturer substitution
This part replaces 183900-024. Substitute parts can look different from the original.
In Stock
Anode Rod 183463-032
#14A

Water heater diagram

Anode rod

Part #183463-032

Replaced by #100108660

?
Manufacturer substitution
This part replaces 183463-032. Substitute parts can look different from the original.
In Stock
Temperature Valve 043151-000
#12

Water heater diagram

Temperature valve

Part #043151-000

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

Anode Rod 183523-033
#14

Water heater diagram

Anode rod

Part #183523-033

Replaced by #100109594

?
Manufacturer substitution
This part replaces 183523-033. Substitute parts can look different from the original.
In Stock
Anode 184977-216
#NI

Water heater diagram

Anode

Part #184977-216

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

Vent Cap 192815-000
#1

Water heater diagram

Vent cap

Part #192815-000

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

Jacket/access Door Clips 0002400801
#25B

Water heater diagram

Jacket/access door clips

Part #0002400801

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

Door Clip 0002400720
#25A

Water heater diagram

Door clip

Part #0002400720

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

Dip Tube 183901-033
#13A

Water heater diagram

Dip tube

Part #183901-033

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: 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: 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: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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.

How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.…

Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…

Water heater common questions

Water heater common questions

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