AO Smith
Gas Water Heater

Model #GPDT50100 Official AO Smith water heater

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

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Error Codes

Showing 10 of 45 parts

Water Heater Anode Rod (replaces 183523-033, 183523-036, 183523-039, 183523-042, 183523-33, 183523-36, 183523-48, 4700276, 9003889, 9003892, 9004092, 9004335005)#14

Water heater Diagram

Anode rod

Part #183523-033
Replaced by #9003892005
?
Manufacturer substitution
This part replaces 183523-033. Substitute parts can look different from the original.
BEST SELLER
In Stock
$37.96 | 
12% OFF 
Phone Price: $42.96
Dip Tube#13

Water heater Diagram

Dip tube

Part #183900-024
Replaced by #9001598005
?
Manufacturer substitution
This part replaces 183900-024. Substitute parts can look different from the original.
In Stock
$15.89
Water Heater Anode Rod (replaces 183463-032, 183463-39, 183463-48, 29109-35, 43816-42, 43817-35, 9000734, 9001672, 9001830, 9001830005, 9003529, 9003650, 9003928)#14A

Water heater Diagram

Anode rod

Part #183463-032
Replaced by #9001829
?
Manufacturer substitution
This part replaces 183463-032. Substitute parts can look different from the original.
Back Order
$54.34 | 
8% OFF 
Phone Price: $59.34
Temperature Valve#12

Water heater Diagram

Temperature valve

Part #043151-000

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

Water Heater Heat Trap Nipple Kit (replaces 33904, 9000415, 9003915, 9003915015)#NI

Water heater Diagram

Nipple

Part #184633-002
Replaced by #9000415015
?
Manufacturer substitution
This part replaces 184633-002. Substitute parts can look different from the original.
This item is not returnable
In Stock
$18.39 | 
10% OFF 
Phone Price: $20.39
Wiring Harness#15

Water heater Diagram

Wiring harness

Part #184289-000

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

Burner#19

Water heater Diagram

Burner

Part #194549-000

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

Thermostat#27A

Water heater Diagram

Thermostat

Part #184768-005

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

Bracket#29

Water heater Diagram

Bracket

Part #185264-000

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

Switch#30

Water heater Diagram

Switch

Part #184353-000

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

Symptoms common to all 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 failure, bad thermocouple
Main causes: water supply needs chlorine treatment, anode rod too reactive
Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excessive tank sediment
Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating element
Main causes: faulty pressure relief valve, water is overheating
Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve assembly failure
Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element, cracked tank

Articles and videos common to all water heaters

Use the advice and tips in these articles and videos to get the most out of your water heater.

October 24, 2022

Easy DIY appliance repairs that anyone can do

By Lyle Weischwill

Get advice on simple DIY fixes for appliances that you can safely do on your own.

April 10, 2020

Cleaning your appliances after a drinking water advisory

By Wayne Archer

Find out how to clean and flush household appliances once a boil water advisory is lifted.

August 1, 2015

Easy DIY water heater repairs

By Lyle Weischwill

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