AO Smith
Gas Water Heater

Model # GPCR50100 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GPCR50100 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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Showing 10 of 45 parts  |

Access Parts 183509-002
#23

Water heater diagram

Access parts

Part #183509-002

In Stock
Water Heater Owner's Manual 184674-001
#NI

Water heater diagram

Water heater owner's manual

Part #184674-001

In Stock
Restrictor 184502-000
#29

Water heater diagram

Restrictor

Part #184502-000

In Stock
Restrictor 184501-000
#28

Water heater diagram

Restrictor

Part #184501-000

This item is not returnable
In Stock
Hose Clamp 183545-1
#11

Water heater diagram

Hose clamp

Part #183545-1

Replaced by #9004462115

?
Manufacturer substitution
This part replaces 183545-1. Substitute parts can look different from the original.
This item is not returnable
In Stock
Igniter Assembly 184047
#17

Water heater diagram

Igniter assembly

Part #184047

Replaced by #100109355

?
Manufacturer substitution
This part replaces 184047. Substitute parts can look different from the original.
In Stock
Switch 185135-000
#8

Water heater diagram

Switch

Part #185135-000

Replaced by #100110013

?
Manufacturer substitution
This part replaces 185135-000. Substitute parts can look different from the original.
In Stock
Hex Nut 183717
#14

Water heater diagram

Hex nut

Part #183717

Replaced by #184746-000

?
Manufacturer substitution
This part replaces 183717. Substitute parts can look different from the original.
In Stock
Drain Valve 42037
#42

Water heater diagram

Drain valve

Part #42037

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

Valve 181508-31
#18

Water heater diagram

Valve

Part #181508-31

Replaced by #100109724

?
Manufacturer substitution
This part replaces 181508-31. Substitute parts can look different from the original.
In Stock

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.…