AO Smith
Gas Water Heater

Model # GPHE50 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith GPHE50 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 27 parts  |

Water Heater Manifold Door Gasket (replaces 183162, 183162-000) 9003401
#5

Burner assy diagram

Water heater manifold door gasket (replaces 183162, 183162-000)

Part #9003401

This item is not returnable
$18.29
10% OFF Phone Price : $20.29
In Stock
Outer Door 9003545
#1

Water heater diagram

Outer door

Part #9003545

In Stock
Water Heater Inspection Port (replaces 183568-000, 183569-001, 183570-000, 21253, 9003414005) 9003414
#6

Burner assy diagram

Water heater inspection port (replaces 183568-000, 183569-001, 183570-000, 21253, 9003414005)

Part #9003414

$17.79
10% OFF Phone Price : $19.79
In Stock
Water Heater Water Line Connector 9003719
#13

Water heater diagram

Water heater water line connector

Part #9003719

Replaced by #9000322

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Manufacturer substitution
This part replaces 9003719. Substitute parts can look different from the original.
In Stock
Vent 9005987
#4

Vent pipe assy/envelope parts diagram

Vent

Part #9005987

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

Burner Tube 9005988
#1

Burner assy diagram

Burner tube

Part #9005988

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

Inlet Tube 9005983
#12

Water heater diagram

Inlet tube

Part #9005983

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

Blower 9005979
#5

Water heater diagram

Blower

Part #9005979

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

Blower 9006545
#5A

Water heater diagram

Blower

Part #9006545

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

Burner Head 9005990
#3

Burner assy diagram

Burner head

Part #9005990

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: 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: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

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.…