AO Smith
Gas Water Heater

Model # PGC100243 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith PGC100243 water heater, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 21 parts  |

Thermocouple 23675
#4

Water heater diagram

Thermocouple

Part #23675

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

Restrictor 35405
#16

Water heater diagram

Restrictor

Part #35405

This item is not returnable
In Stock
Tube 1417-60
#17

Water heater diagram

Tube

Part #1417-60

Replaced by #100109617

?
Manufacturer substitution
This part replaces 1417-60. Substitute parts can look different from the original.
In Stock
Inner Door 39923
#11

Water heater diagram

Inner door

Part #39923

Replaced by #100109442

?
Manufacturer substitution
This part replaces 39923. Substitute parts can look different from the original.
In Stock
Brace 194309
#7

Water heater diagram

Brace

Part #194309

Replaced by #100109445

?
Manufacturer substitution
This part replaces 194309. Substitute parts can look different from the original.
In Stock
Orifice,pg 181778-38
#18

Water heater diagram

Orifice,pg

Part #181778-38

Replaced by #9004105015

?
Manufacturer substitution
This part replaces 181778-38. Substitute parts can look different from the original.
In Stock
Burner 41157-8
#3

Water heater diagram

Burner

Part #41157-8

Replaced by #9004089005

?
Manufacturer substitution
This part replaces 41157-8. Substitute parts can look different from the original.
In Stock
Owner's Manual 183519
#NI

Water heater diagram

Owner's manual

Part #183519

Replaced by #183519-000

?
Manufacturer substitution
This part replaces 183519. Substitute parts can look different from the original.
In Stock
Fitting 32365
#20

Water heater diagram

Fitting

Part #32365

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

2nd Anode Out/heat Trap N/A
#19

Water heater diagram

2nd anode out/heat trap

Part #N/A

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

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

Main causes: faulty pressure relief valve, water is overheating…

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.

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

Easy DIY water heater repairs

Easy DIY water heater repairs

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